Jeri Ellsworth, a 30-year-old high school dropout and self-taught computer chip designer, has re-created the entire Commodore 64 on one chip and inserted it into a joystick, with several games, (like the cool Atari-in-a-joystick games) allowing nostalgic thirtysomethings to relive their youths. A
NYT/news.com article has an interesting profile of Ellsworth, her creation, and other projects she's worked on.