It's been a bit of a unicorn since making a quick appearance at MIX, but we just got the chance to go hands-on with Samsung's Omnia i8910-based Windows Phone 7 prototype phone. Interestingly, we were told that this hardware will never be released to market -- it's just for testing purposes right now. That testing is going quite well, as far as we can see -- Microsoft's people are starting to carry WP7 devices as their personal phones now, and while the software is still quite buggy, the build we saw in action was noticeably faster than before. We were also told that the hardware in the pipeline -- particularly from Samsung -- is apparently quite spectacular, and that this particular device doesn't represent the launch set of devices. We'll have to see -- we actually thought this prototype was quite handsome in person, although it's a little thicker than you might expect. Hit up the gallery for some more pics!