You can connect a usb keyboard to the nokia 770. I saw this at youtube: http://www.youtube.com/watch?v=vSMKO_sbncY

and an other interesting link about nokia 770 + usb keyboard, which I don't understand :-)
http://tabletblog.com/2006/01/usb-po...host-mode.html

I hope that it is possible to connect a usb-keyboard to a n800. But how?