Since I first answered this poll, I bought my wife a MacBook Air 13", and I'm about to pull the trigger any day now on a Retina MacBook 15" for myself. I need it for a tax write-off, plus it'll be pretty awesome to do my work with on the go instead of my current HP ProBook Hackbook.
I'll likely never own an Apple desktop (nope, not even the new ash-can) but Apple laptops are too good to pass up.
UPDATE: typing this on my new MacBook Pro 15". Got a nice deal on it during a 4th of July sale. Bootcamping OSX and Windows 7, loving the screen. I'm a tinkerer at heart, so I do kind of hate that I can't change the RAM or hard drive or battery or *anything* really... so other than the fact that it's completely neutered as far as user-servicing, it's the best laptop I've ever owned hands down.