So, here's a really cool digital map projection system for use with D&D. The problem with most maps is that the players are only supposed to see the portion that they've explored, which forces the DM to either describe where the characters are and have a player draw a map on the fly, or the DM constantly redraws a map for the players, which can be annoying. I really like this idea. The site it's on seems to be a very good resource for D20 stuff, too.

Found on Boing Boing.

It seems like someone would have designed something akin to this that you could project on a TV. That would be very useful.