[James Kendrick] I do not think many people realize the utility of well equipped Pocket PCs and mobile professionals should not overlook them as valuable tools.  I still use the Toshiba quite a bit, although the Sony has replaced a lot of the heavy work stuff.  Most people probably don’t realize that a properly equipped Pocket PC can provide 90% of the functionality of a good laptop or ultra-portable computer (UPC). 

James has a really good look at ultra-portable computers, Pocket PC’s, and mobility. Highly recommend checking out his blog if you have any interest in mobile computing.