Sony just released announced the Mylo. The Mylo is a wifi enabled handeld, running Linux and Qtopia. At a similar price as the Nokia 770 ($350) it features in thumb keyboard (retractable) and a much smaller screen (320x240 unlike the 800x480 that the Nokia has).

If only the Nokia has that keyboard... I dreamt of such a thing: a retractable keyboard under the screen that you push up with the thumb when you want to type. I tried the on-screen keyboard in Maemo, and the problem is that it is on-screen: big thumb are not very compatible. The relief of the thumb keypad would make typing easy with a similar price.

Otherwise the ZipIt (see also) only cost $99... And it is hackable with Open Source alternative software.