I test on iPad, iPod Touch, a half dozen Android devices, and on emulators. Works well everywhere, even with platform-specific differences in design to match different platform paradigms. And I have happy clients.

I've run into this attitude before, though. It seems to be the last bastion of denial of folks who have spent a lot of time learning one platform and who don't want to learn something new. Sorry, but there are better ways.

Err, what do you mean? I once wrote the embryo of a game with Qt, it ran on 3 environments (GNU/Linux, Windows, Android). What to I care that I write for "none" of those platforms if it "happens" to run on all 3?