I read a review in a printed magazine of this device. It wasn't very good. I tossed the magazine because I was travelling back from Hawaii but it said that the character recognition wasn't even close and that there was nothing to hold the PDA in position to be viewable at the same time.
Plus the lack of portability....a regular PalmOne keyboard is smaller and cheaper so what's the advantage other than the "wow" factor?
I'll stick with a minikeyboard or similar device.