Macs have become popular where I work as well and most run PL/SQL Developer through a VM. All of our DBA's use them and developers are starting to convert. Macs have a lot of what I loved with Linux and I considered it. I especially like the terminal programs and how they work with UNIX. I stuck with Windows only because of PL/SQL Developer and running it through VM seemed like, "What's the point of using a Mac then?" There's no way I'm giving up PL/SQL developer.

I don't know how much of a demand there is, but it would be sweet!