In my life time, I have seen many little linux-microcomputers that will allow you to do more hacking with less space.
Sorta like the ultra-tiny SheevaPlug, this BUG is an open-source linux-based microcomputer that already comes with accelerometer, camera, and even a GPS module so you can build the next generation gadget-device with it.
I happen to like it a lot, maybe I will get one soon to start hacking it.
BUG is a baby monitor. B