movements are essentially more exaggerated. weight is slightly further back to keep tips up, but other than that it's more or less the same. much greater flex/extension to initiate the turns.
God i wish snowboarding was allowed there... well if i go to alta anytime soon i guess i only get to ski. But i live near the mountain with the most annual snow yearly :) Mt. Baker
um yeah, anyone who knows about powder skiing knows alta's the place to go in the west. Don't let one bad week make your decision. Every mountain has a less-than-great week in the season.