Back in November of last year, the location-based social event service Hot Potato launched at our Realtime CrunchUp. Today, they’ve taken what was a solid service, and made it a lot better with a number of upgrades.

First and foremost, there is a new iPhone application that just went live in the App Store. With a completely revamped user interface, the app makes it easier than ever to find and participate in events. Perhaps more importantly, it makes it really easy to create new events — and notably, the service has the nicest third-party Foursquare integration I’ve ever seen. When you click on the button to create an event, you can still manually enter a location, but if you happen to be around the venue, you can simply pick it from Foursquare’s list of venues with the click of a button. This drastically simplifies the event creation process since the venue metadata is already there.

This new app will be crucial for the SXSW festival in Austin, Texas, which starts tomorrow. If you’ve been reading TechCrunch over the past week, you’ve undoubtedly seen that just about every location-based service has an app they’re unveiling. And another service based around planning events, Plancast, just launched their app this evening. But Hot Potato offers the best of both worlds as it allows you to both plan future events, and interact with ones currently taking place. The new app makes it very easy to chat about the event, and upload photos and videos.

And they’ve cleaned up the stream of information around these events. There is now a filter to show everyone commenting, or just your friends. There are also now number indicators to show unread items. And the check-in process has been simplified thanks to big green buttons that make it obvious.

Also new for SXSW is Twitter integration. On a case-by-case basis, Hot Potato will be pulling in tweets about certain events at SXSW, using a filter to make sure only relevant ones show up. You’ll be able to do things such as filter those tweets to show only those by people you actually follow, which will make them potentially much more meaningful to you. You can also reply to tweets thanks to integration of Twitter’s API. And you can share tweets from within the app that will show up as retweets on Twitter.

Another new features is Calendars — something which each Hot Potato user now has. Obviously, you can add the events you wish to be a part of to your calendar, but people you are friends with on the service can also add you to other events as well. The app also now features Push Notifications now (on top of revamped email notifications).

On top of the new app, Hot Potato has rolled out a completely revamped website with just about all of the same functionality of the new app (as well as the new look and feel). And at the highest level, Hot Potato finally has its own social graph, which can pull in friends from the usual suspects: Facebook, Twitter, your address book, etc.

And here’s something that should really help Hot Potato this week: each time someone checks-in to a SXSW event with Foursquare, that service will recommend they also join the event on Hot Potato. Clicking on the accompanying link provided in the Foursquare app with open the Hot Potato app and let them join the event with a click (if they have an account). As you might expect, you can also check-in to a venue on Foursquare within Hot Potato. With Foursquare likely to be one of the key apps used by conference goers, this cross promotion is simply huge.

On top of all of this, the service now has its own full API, so others can use and interact with their data.

Simply put, all these updates are full of win, and make a good app even better. And remarkably, they’ve managed to cram in all these new features while at the same time simplifying the overall experience.

Fine the new iPhone app here in the App Store. It’s a free download.

Apple has set the standard that once every year they will release a new version of the iPhone. It stands to reason that this year will be no different, with a new model likely coming sometime this summer. But arguably just as important as Apple’s hardware refresh is the accompanying software refresh that comes with it as well. And that’s why it shouldn’t be surprising at all that whispers of iPhone OS 4.0 are starting to grow. But this year, the timeline appears a bit off.

As AppleInsider reported today, iPhone OS 4.0 is likely to deliver multitasking support. If true, that will make it perhaps the most important OS upgrade for the platform yet. However, in reporting the news, AppleInsider also notes that the software, “remains under development and reportedly has a quite ‘way to go’ before it’s ready for prime time.” Looking back at the iPhone OS SDK history you’ll notice a constant: Apple has released the beta builds in March the past two years. We’re already well into March this year, and so far, no word about Apple being close to doing the same.

In fact, last year, Apple held its iPhone OS 3.0 preview event (where it first made a beta available) on March 17. I remember this well because I was unable to attend as I was at the SXSW festival in Austin, Texas. I also remember when Apple sent out the invites to that event, March 12, because I wrote up the report about it on my way to the airport to leave for Austin. But the difference last year is that there were whispers leading up to that announcement that there would be some kind of event in March for the iPhone OS. This year, so far, nothing.

Now, it’s possible that some of the speculation about the new iPhone OS release has been muted because of the recent iPad unveiling, and it’s upcoming launch on April 3. But that very launch also adds fuel to the fire that we won’t be seeing an iPhone 4.0 OS anytime soon. After all, Apple is currently in the process of rolling out the beta builds of iPhone OS 3.2 (currently on beta 4), which is the OS the iPad will apparently ship with.

The launch of the SDK is important because it gives developers time to get their apps ready for any big changes coming. And multitasking seems like it would be a pretty huge change, though it’s not entirely clear if most of the work would be done through the OS itself to optimize how app resources are managed, rather than apps having to do that themselves to be deemed “multitasking ready.” Hell, it’s not even clear if any iPhone beyond the inevitable new one will be allowed to let third-party apps run at the same time as the new hardware will undoubtedly have a faster processor (possibly the A4 found in the iPad), more RAM, and maybe even a better battery — all of which will be crucial to multitasking.

I’ve spoken with a few developers and none have yet seen any part of the iPhone 4.0 OS. A few have gotten word from the company that it is indeed coming, and that big changes are in store (which had led me to speculate about background running in the past) but have no idea when that will be. Apple, meanwhile, has been thinking about how best to let third-party applications run in the background on the iPhone for about a year now.

It seems unlikely that Apple would launch a new iPhone OS without giving developers plenty of time to play around with it. And since there is no word about the 4.0 SDK coming anytime soon, that could well mean a push from the usual June/July timeframe for a new (final build) iPhone OS launch. Might we see new iPhone hardware that launches with OS 3.2? And then iPhone OS 4.0 would be released as a free upgrade closer to the Fall timeframe? It certainly seems possible.

“We think the iPad is meant to be a Windows killer.”

Okay, yes, that’s slightly taken out of context — but it’s still one hell of a way to rile up developers. And to light a fire under some would-be entrepreneur fanboys. Here’s the full statement around the sentence:

Most people think the important thing about the iPad is its form factor: that it’s fundamentally a tablet computer. We think Apple has bigger ambitions. We think the iPad is meant to be a Windows killer. Or more precisely, a Windows transcender. We think Apple foresees a future in which the iPad is the default way people do what they now do with computers (and some other new things).

Following the iPad’s unveiling in January, people seem fairly evenly split about whether the device will be a failure, or the next big thing (I’m on the record as saying I think it will take some time to catch on, but then will quickly rise in popularity towards the future of computing). This is a smart bet for Y Combinator (and the startups that apply for this RFS) to make. If they’re right, and this is the future of computing, these startups getting to work around the time of the iPad launch (it’s still set to ship at the end of this month) should be well positioned to fully take advantage of the device.

And Y Combinator is thinking big for these startups too. It would be easy to tell companies to make apps for the iPad that are basically ports of current mobile apps, but the RFS points to this post by Facebook’s (and FriendFeed co-founder, and Gmail creator) Paul Buchheit, noting the future iPad applications may be unlike anything we’ve ever seen before.

Something else that is interesting to Y Combinator is how you get this new device in the door in businesses. They seem to think you’ll have to trick your company’s IT department:

One particularly interesting subproblem is how to introduce iPads into big companies. This will probably have to be done by stealth initially, as happened with microcomputers. They’ll have to be introduced as something individuals use, and which doesn’t really count as a computer and thus can’t be vetoed by the IT department. Don’t worry about this; it’s just a little tablet computer.

Just as iPhone app development has exploded, and Android developers are finally starting to see some real money, iPad developers are already in demand. Windows-killer or not, this is certainly an area to watch for the foreseeable future.

In 2008, I attended a meeting in Madrid, Spain that featured the coolest demonstration I had ever seen. The problem was that I wasn’t allowed to talk about what I had seen because the company was still in stealth-mode. More importantly, several governments, including the U.S. government were still exploring various parts of the technology for next-generation computing systems, so parts of this were very confidential. By the end of that year, Oblong Industries had revealed itself, but still little was said about its project. Finally, people are starting to talk about it.

While we may not have been at this year’s TED conference, apparently, Oblong was. And apparently, it wowed the crowd. And it should have. If you’ve seen the movie Minority Report, you’ve seen the system they’re building.

No, really. The co-founder of Oblong, John Underkoffler, is the man who came up with the gesture-based interface used in the Steven Spielberg movie. And now he’s building it in real life.

The demo I saw a couple years ago was stunning, but it was still just a video. Apparently, at TED, the audience got to see it in action. NYT’s Bits blog detailed some of it in a post yesterday. For those not at TED, Oblong has also made a few demo videos in the past, which I’ll embed below. Again, this is Minority Report.

Oblong’s coming out party couldn’t come at a better time. Following the unveiling of Apple’s iPad, there has been a lot of talk about the future of computing at a fundamental level. That is to say, after decades of dominance by the keyboard and mouse, we’re finally talking about other, more natural, methods of input. The iPad is one step to a multi-touch gesture system (as is this 10/GUI awesome demo), but this Oblong system is the next step beyond that.

Other systems, including Microsoft’s Project Natal for Xbox, are promising similar types of gesture interaction as soon as this year. But the reality is that a system anywhere near this solid is probably still years out. Minority Report, the movie, takes place in 2054, for example. And while that is just a movie, Spielberg instructed the people working on the tech for it to really try to come up with what they thought we’d be using in that time. That said, Underkoffler told Bits that “I think in five years’ time, when you buy a computer, you’ll get this.” Of course, that’s the entrepreneur talking.

For now, I’ll just have to continue to dream about using a computer like they do in Minority Report. But the dream is getting closer, it seems.