Some of Ike's moves are up today. His up+B looks like it works like Kirby's cutter, and his chargeable B attack is probably going to work like Roy's B. There's also something of a confirmation that he'll be a "heavy" character, unlike Marth.

The Smoke Ball seems a bit dubious to me, though. Like the Nintendogs, I honestly can't grasp the advantage of obscuring your own field of vision. If you're good enough to play without needing to see what you're doing, then you don't really need a crazy-ass item in the first place. They're not really going for effectiveness with this one.

Edit: That said, I guess it could be kinda fun when playing with a room full of people.