While everyone and their dog are introducing their iPad apps to the world, let’s take a look at a company launching something for that other – slightly more open – platform called the World Wide Web.

We profiled Dropico, an easy-to-use drag and drop photo sharing app, before when it was still in private beta and people seemed to dig the concept a lot. Well now, you can try it out for yourself.

When you register for and log on to Dropico, you can select a number of popular services that allow you to share pictures, including Flickr, Facebook, several Twitter photo sharing apps, MySpace, Photobucket, Picasa and more (others can request to be included). When you connect to these services inside the main Dropico interface, you can view your photos and albums in separate frames, but also drag and drop them from one to the other.

Dropico refers to this as a “cloud to cloud” service in the sense that it makes it easy for people to organize their photos and albums across multiple environments from a single location. The company also allows third-party developers to build services on top of its platform – one obvious addition that’s already live is integration with Pixlr for on-the-fly photo editing.

Finally, Dropico also offers a white-labeled version of its platform, which the company says should appeal to storage and printing service providers, and a hosted solution specifically tailored for mobile operators.

Dropico shared a couple of upcoming features with us – the next version will include a stream of photo updates from your friends across different social networking sites and photo sharing services, the ability to selectively share albums with others, and support for drag and drop video and document sharing.

The company is also working on an iPhone client and yes, an application for the iPad.

Give it a whirl and tell us what you think.

Google, for its part, says that it will allow third-party sites (including Flickr) to continue to integrate with it. Here’s the statement they sent us:

We believe that openness is always the best approach and will allow third-party sites to continue to integrate with Picnik.  People should be able to pull photos from other photo sharing sites, make edits with Picnik and save to whatever site they choose.

That sounds good, right? Well, it doesn’t sound like anyone bothered to tell Yahoo. Here’s their statement (from OutCast Communications, which does Yahoo’s PR):

Thanks for getting in touch. At this point we don’t have a comment on the acquisition, but will let you know when and if we have information to share.

If Yahoo was going to continue the Picnik relationship, don’t you think they’d come out and say so. Or at least say something like, “at this time, we see the relationship continuing.” Instead, it looks like they may be weighing their options. Or maybe they just don’t really know how the acquisition will affect things yet.

The problem is that Picnik is currently the only way to do that majority of edits on Flickr. Without it, the product as a whole becomes less valuable. So will Yahoo have to build its own photo-editor (which they obviously were against before, or they would have done it rather than partner with Picnik)? Or will they partner with someone else — maybe Aviary?

Regardless, Google has a history of acquiring companies and then letting their products wither (Dodgeball, Jaiku, etc). Let’s hope that’s not the case here, and that Picnik is at the very least integrated into Picasa (Google’s online photo service), because it’s a solid service.

Adobe might still be having trouble getting Apple to accept Flash on the iPhone, but another one of its products is going gangbusters. Photoshop.com Mobile (iTunes link) has been downloaded more than 6 million times since it was released last October and is the second most popular free photography app in the App Store.

The app lets you share and edit up to 2 gigabytes of pictures stored on Photoshop.com. It allows you to do basic photo editing on your iPhone, including cropping, rotating, filters, effects, and borders.

Both photos and videos taken on your iPhone can be uploaded to Photoshop.com and viewed through the app. Photo sand videos can be shared via emailed links.

The Photoshop app is also available on Android and Windows mobile.