While no official announcement was made on a date, the ESRB gave a rating for the game Pandemonium for the Playstation Network, which usually seals the deal in terms of a title coming out for it.
Pandemonium is a 2.5D platformer (think Klonoa on PS1/PS2 or Tomba) where the game is on rails but the camera and environments are in a 3D so it appears that you are actually moving in a 3D environment when you are really just playing it in 2D. A cool fact about this game is that it is actually available on the Nokia N-Gage as well. If you are not into downloads and want to actually own this game, it can easily be bought for between $2-$5.
