There was an older trailer with just the Mars Land Rover. This one has the bots!
http://uk.promotions.yahoo.com/transformers/
Don't all kill me, but Michael Bay gets a lot of flack that he doesn't deserve. Yes, Pearl Harbor sucked, a serious, reflective movie he should not be helming, but The Rock was pretty kick ass. And Armageddon was awesome while you were actually watching it. Most of his decent movies are usually pretty stupid, but they look great. I have high hopes for this movie, and propose that this material is perfect for him.
Don't all kill me at once now.