I cannot believe i've gone this long without going back to Snow Leopard. I dearly miss Spaces and have had Lion since day one. I'm currently using Mountain Lion on my MBP and hate it. It's too buggy and as luck would have it just found my original SL disc. Wondering if Photo Stream would still work between my current iPhone 4 and (upcoming) iPad 3? Further, I'm guessing iCloud features would stop working no? Like, say iCloud syncing between iCal on all devices, and bookmarks right? God I hate Apple now that Steve Jobs is gone. Sorry, rant over.