It's hard to improve on perfection, and in my opinion Snow Leopard is the perfect OS. I think at this point all we can hope for is for Apple to not fuck things up - and it looks like they haven't - these are nice new features geared at home/office users (without getting in the way of pros), and the update is priced extremely low. I'm not expecting any big under-the-hood changes, because they've already proven the awesomeness of Mac OS X on the Intel platform with Snow Leopard.