Just tried the 1.7 APK, solves my previous issues and now works perfectly on my Droid. Seeing good framerates and it's entirely playable. Steering an FPS with an accelerometer will take some getting used to. Only played through the first half of first level so far.
I'd still love to get mouse look working. +mlook / -mlook seem to fail, even when bound to a key.
In any case, very well done, if you have a reasonably powerful phone, try it!