^^I am using AT&T Tilt a.k.a HTC Kaiser/TyTn2. There is already a Android repository available (and getting updated every day) and some ingenuous guys over at XDA-devs actually was able to compile the code into a working Android OS, which is able to run on Windows Mobile... till now they have been able to get the Touchscreen working, the phone keys working, quite a few apps working.. but they are currently on their way to port a phone radio onto kaiser, after which it will be able to make and receive calls. Apart from that, the OS is working fine. Android is sleek and extremely fast.