I actually had one pre-ordered but cancelled it. It's an awesome, awesome system, but at the end of the day, I just coulnd't justify getting it. I game on Xbox, have a laptop, and don't spend lots of time on planes or transit anymore. I doubt I'd find the need to use it much.
I might have been able to justify it had it been more versatile with respect to web browsing, photo and movie viewing, and offered more than memorystick with respect to storage medium. I know some firmware is in the works to basically turn it into a PDA but until then I just can justify it.
Besides I used the cash for a new Canon Digital Rebel XT!