I made the switch from Ubuntu to Mac myself about 4 years ago. There isn't a single piece of software I run that runs better on Linux, even some apps that were

I made the switch from Ubuntu to Mac myself about 4 years ago. There isn't a single piece of software I run that runs better on Linux, even some apps that were designed on and for linux (ZSH and Vim, for example). The only thing that might make me switch back at this point is the direction OS X is heading in. I'm still on 10.6.8 and I refuse to upgrade until they make an OS that's faster and less buggy than the one I'm running. Lion and Mountain Lion don't fit that bill. Also, there's no backwards compatibility for Apps. More and more apps are becoming 10.7 only, which may force me to make a decision sooner than I'd like.