There were Tetris games at Toy Fair 2011 in New York City, but they weren't video games. First, this is Tetris the Card Game from Fundex. It's out this month.
The other Tetris game at Toy Fair 2011 was Tetris Link, from Techno Source. It's kind of like Connect Four. I played it, and am surprised to report that the concept of Tetris as a single-board, multiplayer game works. Success! This one will be out in June at Barnes & Noble and in more stores this fall.