Angband development is very active at the moment. We thought it would be good to produce a nightly Android build based on the current Angband source in the git repo. Be aware that this is untested code and might be broken or crash or eat your save file, etc. It is a completely new Android app and will not affect files in our other releases.
If you find bugs, I would encourage you to open discussions in the forums here and even more importantly please open tickets at http://trac.rephial.org/. For Android specific issues, please report bugs at angdroid.org in the bug forum. I've patched the version number in the game with the timestamp when we retrieved the Angband source from git, so that is a way to track bugs back to the source. Its probably a good idea to reproduce the bug in one of the official nightly builds from http://rephial.org/nightlies/ before opening a ticket at rephial. I figure the more bugs we find and the more feedback the Angband community provide to the devs, the better the outcome will be.
The nightly is available here: