Full size SD was a great move. I think it is about the size of 1/2 sheet of paper. Great size for reading ebooks. Magnets on the back, stick it to the fridge for family notes, etc. Full size usb makes for tons of accessories.

I'm thinking navigation in the car, plug in a usb hard drive (plugged into a 12v usb power adapter) - great for music / movies in the car.

Use as a tablet most of the time, use the keyboard for more/longer power. I wonder if you can reverse the screen and fold it over screen up for extended tablet use. Priced in the right area, makes it very tempting.

Different use case than a tablet, but kinda similar as well. Just slightly less portable. But, if I have to make a choice between a Touchbook @ $400 (+ keep n800) or a $700+ phonelet........well with potential new video drivers and mer, $300 will buy a lot of accessories.