We've been working on this library the past handful of weeks and managed to get it to such a state we feel it's ready to start testing publicly.

This library, much like firmata, allows for setting & reading Arduino pin states on your Android device without changing the firmware on your ArduinoBT device.

We're still in the early phase of development, quite a lot of documentation is lacking yet.

It's been tested to run on Google Nexus One, Google Nexus S, ZTE Blade, and LG-P990 with Processing 0192 and 0194.

https://github.com/1scale1/sweetbt/wiki