Some ideas are so brilliantly simple, we're surprised no one has thought of them before. Such is the case with Peter Green's MacMini Portable Project, in which the titular Mr. Green adds an 8-inch folding LCD, Li-on battery, thumboard, and trackpad to a stock Mini for mobile OS X action that costs less than an iBook. Green scored most of the gear on eBay, and ended up spending under $700 for his one-of-a-kind creation, although that figure doesn't factor in the opportunity cost of the many hours spent on this build. It seems like there might be some money to be made from commercializing a kit with these features- any takers?

Kajeet: an MVNO, you know, for kids