If you haven't seen this one yet, be sure to take a look. It has a hardware switch and you can go back and forth between touch and digitizer. Very nice unit and I'll give a link here to my blog where there are a few items about the units from Tablet Kiosk. They also make a great UMPC too. I know I don't get over here often enough as the blog keeps me going these days as well.
http://ducknetweb.blogspot.com/search/label/Tablet%20PCs
