Seeing Android hacked onto hitherto Windows Mobile devices isn't new, but this latest ROM is probably one of the most complete - and recent - so far. The handiwork of the guys over at xda-developers, the ROM will load Android 2.1 with HTC Sense onto a device like the HTC Touch Diamond2.
So far, there's a lot more working than still requiring attention. In fact, only the camera and GPS are still causing headaches; the touchscreen, hardware buttons, wireless connectivity, radio and Android market all work, and there's even Flash support though it doesn't seem the Diamond2's CPU is strong enough to get past jerky playback.
Still, if you've an old Windows Mobile device lying around then you could do far worse than to give it a shot of Android. Full installation instructions and all the necessary downloads here.