Okay, Google Android fans — your apps are starting to arrive, especially as Google continues to improve the SDK.

First up, here’s a demo of the new app FingerPlay MIDI, which turns Android into a simple touch controller. True, we’ve seen similar things on iPhone, and Apple’s platform has precise multitouch which Android lacks, but it’s nice to see the concept extended across platforms. Big thanks to postromantic on Twitter for the tip! (Follow cdmblogs for more.)

FingerPlay MIDI

I can’t tell yet if this will be open source – that would actually be nice, I think, as it’d allow the community of developers to have a shared set of tools. (In fact, it seems a logical model would be to cash in on general-market apps and open source the more music-specific, niche stuff.)

In other Android mobile news, Christopher Souvey continues to work on his Musical application and the Musical Pro desktop app. The desktop client works with MIDI over Wifi, and thanks to the Cupcake OS update, latency is greatly reduced after a complete rewrite and the creation of custom drawing and event handling and controls. Check out the slick new tuner and UI Christopher has been developing, too.

http://www.souvey.com/ [blog with all the latest]

This play-along piano is probably not something any of you folks desperately need, but it is a good demonstration of what’s possible.

Another interesting thread to follow will be the growing power of Web apps. On Android, you’re already able to combine a Web app with the Java APIs, and going another level, mobile apps with native ARM code for the processor. Translation: while phones still have a fraction of the power of your computer, it’s getting easier for developers to work across platforms and to take advantage of what power is there. That’s leading to trends that could be of use not only to a single platform (Android, iPhone), but to mobile devices in general.