I have become more and more eager to code something for Android recently. I'm thinking of porting my old XM / S3M / MTM / MOD replayer. I have spent quite some time on making sure that the XM and S3M playback is accurate. From my internal tests it does better than most other players, even better than XMPlay on some tests (and worse on others).
Sadly, I do not have much time right now. But soonish I hope..