Does the Android app need to be developed in a specific language or tool? Specifically, would it be alright if it were developed using Adobe AIR with Stage3D? The end result would still be an APK file like any other.
I have honestly never heard of these or of phonegap.
I have limited knowledge of Android development, and the only time I've ever written a hello world application, it was written in Java using Eclipse. That was more than a year ago and I don't have it installed anymore. I suppose that would be my #1 preference but I wouldn't say no to other methods if the dev can do quality work.
This quote from Wikipedia makes me a bit wary:
However, the use of web-based technologies leads many PhoneGap applications to run slower than native applications with similar functionality. Adobe Systems warns that applications built using PhoneGap may be rejected by Apple for being too slow or not feeling "native" enough (having appearance and functionality consistent with what users have come to expect on the platform).
Anyway, will send you both some PMs soon.
Thanks.