I'm pretty late to the Android party but it looks like there could be some cool stuff out there if you know what to look for. So far I've got:
ULoops -- The only "DAW" type program I've found so far
Link: http://uloops.net/umc/index.php
SID Player -- 'nuf said
Link: http://www.androidzoom.com/android_appl
_gowo.html
C64 Games Music Collection -- Streams rendered mp3's of sid music
Link: http://www.androidzoom.com/android_appl
_fijs.html
Frodo 64 -- Emulator
Link: http://www.appbrain.com/app/org.ab.c64
Also, searching for "midi" turns up some interesting stuff but nothing I've bothered to try yet...
Anybody got some favorites I should check out?