That's sort of similar to what I would build if I were in charge of the Apple iTablet project. A light-weight ~13 inch screen with a built in stand that you co

That's sort of similar to what I would build if I were in charge of the Apple iTablet project. A light-weight ~13 inch screen with a built in stand that you could use as a wireless second screen for your macbook (/pro). When the laptop was turned off or out of range it would retain access to a cache of your e-mails and some of your media. Throw in wifi, a web browser and a note pad and you get a useful accessory rather than a stand alone pointless gadget.