Use it as a kitchen tool for quick look ups of recipes and such
or
http://code.google.com/p/xbmc-n770-remote/ use its a remote control for a boxee install on a macmini hooked up to your tv or an apple tv running boxee.
use it with a full sized bluetooth keyboard or the apple aluminum keyboard http://cs.gmu.edu/~sean/stuff/n800/keyboard/ as a dedicated writing and email station. This is how i use mine, also use it to have IM running in the living room when i'm watching something on TV.