I installed
gString (chromatic tuner)... but haven't had much chance to try it out yet.
I'd be interested in what get's said here. I love my Android phone and would like to find more uses for it (I really don't have much use for it as a phone

)
as far as non music apps, I switched to
dxTop as my interface and my sole purpose for having an Android device is the
Subsonic app to interface with my server. I have a Samsung Moment on Sprint