Gamasutra paper about alternative game controllers. This topic is very trendy since now we have a wide range of different controllers: josyticks, joypads, cell phones, tivo remote controls, keyboards...
The game controllers there sparked some ideas of how they could be used for creating innovative games, and bringing back a few classic toys of our youth. Some of these concepts may be little more than interesting distractions, but I hope this article makes a few game designers--as well as the controller manufacturers--sit up and start thinking about designing some cool games to go along with them.
What about a power glove revival? Cheesy but so nice :)