Michael Arrington posted on TechCrunch two days ago that he'd like to see a simple web tablet produced for around $200, and wants help building it. Named the Firefox Tablet (at least for now), it would bypass any desktop interface and be used primarily for browsing and Skype. If you think about it, everything from instant messaging to e-mail to wordprocessing can now be done from within the browser, and with an iPhone-style touch screen keyboard, it would probably be all you need for your away-from-home computing. It'll be very interesting to see where this goes.
As a side note, Loren Feldman thinks he's delusional! I look forward to his expanded explanation later.