I was wondering the same thing as f0dder. Since moving platforms, I have found spotlight infinitely useful.You've totally moved to Mac? How are you finding it?
The question was for Josh, but let me chime in.
I've been exclusively using OS X (on decent, but overpriced, Apple hardware) for work, since October last year. For the stuff I do, there's some advantages to this - a lot of OpenSource stuff just works better on something semi-unix, since programmers are too lazy to write properly portable code... and homebrew *is* easier than hunting down all your tools manually on Windows (even though the combined OS X ecosystem is worse than package managers on Linux).
A lot of things are a bit too dumbed-down for my taste, and the OS is pretty unstable compared to any Windows release since Vista. I've had a bunch of gray-screen-of-death kernel panics doing such OUTRAGEOUS things as trying to drag a window to another monitor, or fullscreening a youtube video. And while the machine is silent under normal operation, it goes full jet engine (as well as thigh-scorching hot) when the GPU is involved.
Sans the "runs opensource easier", I see no reason whatsoever to run OS X - definitely wouldn't be doing it at home. It really isn't "easier" that Windows these days, it's less stable, and while MS are pulling some nasty stuff with Win10, Apple are even more evil. I'd be closer to moving the home setup to Linux than OS X