InputStickUtility and USB Remote apps are now available on Google Play. It is also possible to get .apk files from download page. I've updated InputStick API, now it includes support for keyboard layouts (currently: DE, PL, RU, EN/US), more info in my previous post.
Unfortunately, recently I was not able to get many software-related things done. I keep wasting A LOT of time on stupid things like dealing with customs office :(