We haven't been covering too much the ongoing attempts to get Google's Android OS to run on Windows Mobile hardware--it's a moving target with varying results depending on your device--but mtllc555 has gone ahead and shown what a fully-functional Android looks like on a Diamond 2.
The OS is relatively fast for basic functions (a little sluggish on graphics) and overall seems to be working for every function (call, web, market, etc.).
Unfortunately, to get Android to run on your phone will depend on your hardware and radios (GSM vs CDMA) as each phone requires its own 'team'--some are more ahead than others. For instance on the CDMA Touch Pro 2, sound doesn't work and battery life is not that spectacular.
A good place to get started if you're interested (and have some time) is XDAndroid, which has info on the raphael/fuze, diamond, blackstone, topaz and rhodium. The process is not too difficult, can do no permanent damage and is a great way to kill a few hours.
Full video of Android 2.1 ('Eclair') on the Diamond 2 after the break.