Jim wrote on Feb 16, 2012, 13:16: I'm still on Snow Leopard. I haven't really seen the need to upgrade yet.
Technically, I don't think I can upgrade to Lion, even if I wanted to. I have a 2007 iMac... and I read somewhere something about Lion doesn't support the older Core 2 Duos. I'm pretty sure Mountain Lion will definitely out of reach. (Not that I care)