I fully understand the awesomeness of this project, and this is not a dig, but are there any good USB devices that do something better than the N900 already does? External hard drives and CD drives, I'd rather have the data on a microSD. Bluetooth and FM radio no big deal, since the N900 already has the hardware. I think a TV tuner would be cool, but transcoded shows with the adverts cut out is better. Okay, plugging in a touchscreen would be cool, I could make my own 'terminal mode' in my car. Also, an arduino would open the door to many other sensors and devices