A microwave might not be the first thing that springs to mind when you think about computer monitors, but if you think about is closely it actually makes a large amount of sense. It's a large piece of kit with a great screen/window, and plenty of room inside for whatever drivers you'd like. The fact that it looks like it could cook up something tasty means robbers won't pay it any attention (unless they're hungry) and the fact that some guy kitted this out shows personal ingenuity/craziness.
See here for more computers
Nikon S1000pj: World's First Projector Camera
I'm quite liking that - reminds me of the spoof advert where someone disguises their TV as a microwave to avoid paying the licence fee