Ben Lewry, a guitar and computer lover, modded a laptop to fit inside an electric guitar. It's called the LCDetar. Which is not the best name, but far better than Guitard. The laptop inside features a trippy music visualization program that responds to whatever you're playing on the guitar. Good job Ben, the thing looks sweet. As a matter of fact, it may be the best laptop mod I've ever seen. Well, except for the ukulele one I made last year. Ho ho, gotcha Ben! Ukulele laptop FTW. Better luck next time buddy.
A couple more pictures and two videos of it in action after the jam session.
Geek Hacks Laptop, Puts in Electric Guitar [techeblog]