I said the other day I'm not sure if I had tablet envy. After watching this webcast, I'm pretty sure I do. I don't have it bad - it's not enough for me to sell my Toshiba yet or, for that matter, regret the Toshiba purchase (I could have held on to the Acer). But this is definitely a very nice product. The size can't be beat. As I mentioned, my only two real concerns so far are the lower resolution screen and raised edges of the screen.
As Michael Gartenberg says, "Short review, if you're in the market for a TabletPC, stop what you're doing and go to the ThinkPad order site and order one" (via jkOnTheRun).