I also stand for Vaio UX, had a UX1XN, the best UMPC ever had, if you can get the driver right, especially for touch screen, the original driver was somewhat inaccurate even calibrated. I bought a third party driver (I couldn't remember the name now) in a group purchase which cost about $30, and it was SUPER accurate and even support for gestures for scroll or drag etc. (Yeah stock driver does not support that.)

Some gadget had an eye-catching design but not friendly in actual use, but this one was cool in looking and using. Mouse pad was the best ever, much much better than the dot on Vaio P.

The only disadv would be difficult to perform internal upgrade, need accurate soldering to change CPU and seem to be impossible to upgrade RAM, but that's common on all UMPCs...