I'm in.
Not much to say other than planning on doing the jam with a friend and regardless of the theme, we've got plans to make a game about a certain astronaut going around slapping people.
Probably will be using either Unity or Game Maker and AESprite or Gimp/Blender depending on whether we decide to go 2d or 3d with it, I have no idea what he plans on making music with.
Good luck all!