Ultramobile PC To Make a Comeback?

jfruhlinger writes "Remember the Oqo and other 'ultra-mobile PCs' — full-fledged Windows machines in a cell phone form factor, pushed without success in the early-to-mid '00s? Well, Japan's NTT DoCoMo thinks that they could still catch on, making plans for a Windows 7 computer with a 4-inch, 1024-by-600 screen."