I have owned the M1400 Tablet PC from Motion Computing for several years.
It was the second generation device they produced. It has been a workhorse.
One of the key factors is looking at a mobile device is how many moving parts does it have (swivel screens are generally a bad idea) as well as how "sturdy" it is built to withstand shock, abuse and general daily rough treatment. I have put my tablet through the ringer and it still works great. The last feature is WiFi capability. If you intend it to be your mobile computer, it should have the ability to connect wirelessly to the internet.
Motion Computing now has a couple of new models (same footprint 8.5 x 11 screen) and a 1/2 size footprint which is an ideal solution for the mobile professional.
I would recommend you do a price comparison against the competitive units made by Gateway, HP, Toshiba (for example) check out www.cnet.com for reviews. Motion devices are feature rich and for my money, a great investment. Motion should have a competitive comparison on their website product page as well.
Mark C. Maliwauki,