I honestly like what I'm seeing, and I do believe it is viable.There's better screens here:
http://www.engadget.com/2008/01/06/i...dows-mobile-7/ Overall, it looks nice and flashy like vista and windows 7, looking very user-friendly, modern, futuristic even...
Though I must say, I hope we can still pick our own UI's of choice, I'm really attached to TF3D, and nvidia's Tegra prototype UI is also wicked awesome...idk, overall I think no matter what we're gonna end up with something good!