The Haitian can cancel out powers, so does that mean Peter's power to absorb powers is cancelled or just the powers he absorbs? It must require effort to cancel, since Nathan was standing next to him when he took off. So if he let his guard down, Peter could get the Haitian's power. But then could he cancel the Haitians cancelling power? Kind of like time travel, don't think just enjoy the ride. Peter should have Adam powers now. He should also have Sylar's (assuming Sylar actually has a power and the "knowing how things work" wasn't something else). Then again he probably should have all the powers Sylar accumulated, too.