It may be an old machine, but it is still in many ways a near perfect design. I have listed before the problems I had with my original TC1100, and why I changed my mind, but at the end of the day fixing the problems would introduce new weaknesses. jk of jkOnTheRun documents his decision process.
so I have ordered the HP tc1100. The tc1100 has a 10.4″ screen and only weighs 3.1 pounds without the keyboard attached which I really like. This is the closest device to my dream mini-Tablet in both size and function. The tc1100 is a true hybrid Tablet with a keyboard that can be attached or detached at will so it will be the best solution for the way that I work.