As an Office 2.0 addict, I have a vested interest in all things that can enable true user mobility, be they new form factors or wireless technologies that will keep me connected whenever and wherever I want to be. Problem is, coming up with new form factors for personal computers has proven more difficult than most would have thought initially. At last count, I can only think of three that truly worked out: the desktop computer, the latop computer, and the cellphone. Beside niche applications, the Tablet PC is a total flop, and most people I know have abandoned their PDA in favor of a beefier cellphone, be it a BlackBerry or a Treo. I have tried the Nokia 8700, but found the screen too small to make it truly usable. Size matters: if your device is bigger than a cellphone, you cannot carry it in your pocket, and if it’s smaller than a laptop, you cannot get anything serious done with it. Granted, a smaller laptop with several days of battery life would be nice on the go, yet the real issue is not size, but the fact that web-based activities require a regular keyboard. Until someone comes up with a revolutionary user interface that can effectively replace a keyboard for filling up forms at least half as fast as what a regular user can achieve with a standard keyboard, I do not think that there is any room between a cellphone and a laptop. Sorry Bill, I won’t buy your UMPC.