I'd thought I' d put this up since we've been devoid of games in this area for awhile. This is the more detailed, re-thought-out version of my GDS game from June(?) with fleshed out rules, cards and tiles.
http://home.comcast.net/~doho123/games/Doppleganger/Doppleganger.htm
Enjoy!
[Edit - Bryk: Changed title to include designer's name]