A new Transformers game, Transformers Prime, is coming. The game is a brawler aimed primarily at younger gamers, as it's based on the Transformers Prime cartoon, not the movies .It will be released on the Wii and Nintendo DS later this year.
"Hasbro Studios has done a phenomenal job with the Transformers Prime television show," said David Oxford, Executive Vice President at Activision Publishing. "We are collaborating closely with the series creators to capture all the adventure, humor and friendships from the show to create an authentic action experience for Transformers fans of all ages to enjoy."
If you're a more "mature" Transformers fan, you'll want to try Transformers: Fall of Cybertron which is also coming out later this year for the PS3 and the 360.