I waffle between OS X and Linux. They're both running at my house, more Linux than OS X, but when I got a new Verizon iPad with 4G, I finally set down my Cr-48 running Ubuntu (love Unity on that machine, btw), and picked up my old 2008 MacBook again. Hacking: I find linux more pleasant. If I bought a new computer today, it may well be a Lenovo tablet, in the old, swivel-screen definition of the word, because I really miss the high input resolution of resistive touch.