I just got a 17" iMac Core duo, 1.83 ghz. When playing wow, I get decent framerates, but the gameplay is very, very choppy, like it pauses a lot. The performance overall of the system is funny. All the universal apps are extremely fast, but as soon as I open a powerpc one, it pauses and slows down. When are they releasing the update for WoW to make it Universal?