I hope that the attention of tinkerers and developers focuses on the samsung galaxy tab 7". I took one for me after some months playing with my wife's one, and I can witness it's very comfortable to use thanks to the form factor, which hits the sweet spot between portability and readability. Running a chrooted gnu-linux full distro is a breeze, since even I could do it
in the meantime Lardman et al. have been working on a native, non chrooted port of MeeGo, and once that is done I think that anything is doable.
And, it's quite cheap nowadays - I took mine for 300 Eur.