This one caught my eye with it's improbable but delightful combination of NES and Atari 2600 systems:
http://www.engadget.com/2007/08/23/ben-hecks-nestari-is-twice-the-fun/ (http://www.engadget.com/2007/08/23/ben-hecks-nestari-is-twice-the-fun/)
Great for all those NES and Atari fans who kept all their cartridges in working condition (my Zelda II cart still works, blast its' nodes). Looks like chunky ass in the hand, but wins points for actually-using-cartridges cred.
Wow, it's amazing what people can do...