Microsoft has done at least two things right with Windows Mobile 7.
First: Recognized that they needed to start over.
Second: Not ripping off Apple’s UI style as every other vendor has been content to do.
Yes. I like that UIs might be up for grabs still. One of the things that I’m looking forward to with the ipad is the possibility of all the new little interactions that will be invented. Some will be as great as tweetie’s release to refresh, I’m sure.