I'm currently running 10.7 Lion and I'm wondering if it's worthwhile to upgrade to Mountain Lion?? The big thing I want is AirPlay but if there's a way around that (preferably wirelessly) then let me know. Right now I don't see any advantages to upgrading. OS X 10.7 is doing fine for me. I do miss things like Expose from Snow Leopard though. I don't like Mission Control. Anyway thanks for any feedback. Sorry if there's a thread on this. If there is please direct me. Thanks.