i'd make ITs more modular, to reduce waste and increase upgradability and customization. just imagine being able to swap out your n810's microSD slot for an SD or CF slot, or replace the (POS) webcam with an IR transmitter. i envision tiny little PCI slots that you can fill with XOHM, GPS, TV tuner, or 7.1-channel sound cards, just like you would on a desktop PC, but much smaller, of course.

All of this without affecting the durability of the device when fully assembled, of course.