Apple logo MacBook hardware hack
Some clever kids hacked open a MacBook, placed a second screen inside, behind the Apple logo, facing out, and wired it up as a second display. The Apple logo is pretty sexy with the iTunes visualizer running behind it.
OK, this is a little geeky, but it's fun, and oddly compelling.
As display technology gets lighter and cheaper, we'll be seeing it everywhere. Some of it won't be this cool.