I have mentioned a few times in the past that I am searching for a good Windows Mobile smartphone for this blog. At this point, I've narrowed down to two: 1). Sony Ericsson's Xperia X1 and 2). HTC Diamond Touch. I think considering all the features, X1 may be the winner. Having SVGA resolution (800x600) makes it very attractive, 3.5mm audio jack is a must and a true world wide support (quad-band, and 5-UMTS bands supported). While I wish it has the cool touch-flo as the HTC, I think I will go for the bigger screen, full QWERTY keyboard and world-wide support of the X1.
Found a nice clip of its UI below: