Well this skyrocketed to the top of my most anticipated list. The destruction mechanics look astounding. It reminds me of one of my favorite games of last generation, Red Faction: Guerrilla, probably one of the most satisfying gaming experiences I've ever had. I'm a nut for amazing physics in game, and found myself replaying Red Faction so many times over the years just to blow shit up.
If Crackdown 3 can in any way replicate that, plus add in the addictive skill building from the first two Crackdowns...
No words. No words.
Update: Looks like my excitement got the best of me, and that insane destruction is available only in a specific multiplayer game mode. Not horrible, by any means, but slightly disappointing I can't just wreck my single-player world.