Plumble
Plumble is an enhanced Mumble client for Android with the goal of replicating the full functionality of the desktop version.
See this page on the wiki for compilation instructions.
https://github.com/Morlunk/Plumble/wiki/Building-Plumble
Plumble is also available for purchase on Google's Play store. All proceeds go to furthering development of the app.
https://play.google.com/store/apps/details?id=com.morlunk.mumbleclient
Alternate ways to donate
If you use any of the below methods to donate, I'll send you the latest APK via the email address, and add you to a mailing list for new releases!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=U33T852KAR9PG
Or, pay with BTC!