"The Newtonian Casino" is about a group of hackers who build shoe-computers to cheat at roulette.

It's a fascinating true story.

A similar device could easily be built for chess computers. Especially since hardware now is much more powerful, and much smaller, and battery technology (while still being lousy) is much better.

What kind of chess computing could you get from, for example, Raspberry Pi? What software would run at reasonable speed on it?