Apple’s previous version of its Mac OS X operating system, Leopard, was already great, so what does Apple’s latest upgrade — Snow Leopard — bring to the table? More importantly, is it worth bothering with? I’ve been using Snow Leopard since FedEx brought it to me late last month, and at the upgrade price of just $29, yes, it’s worth getting. Not convinced? First of all, you should know going into a Snow Leopard upgrade that you’re not going to come out it oohing and awing over any major new features.