Destructoid has also posted a Transformers: FOC preview article. Again, most of the info has been covered before, but the article can be found here.
I saw a segment where Grimlock had set out to save his captured dino buddy Snarl. Once he got his meter up to transform, he took on waves of Insecticons, smashing them to bits with tails and claws, and then breathing fire on them to make sure they were dead. You'd have to be dead inside to not want to play as Grimlock after seeing this.
Vortex in his attack jet mode
Another shot of Bruticus
Another look at Jazz using his grappling zip line
Starscream leading an armada