No, and I doubt I will. I did certainly download the beta. At this point I'm not looking for a complete overhaul, I'm looking for tweaks. Simpler grappling? I'm down with that. A more complicated barbarian? Not so much. Ultimately Pathfinder will be a great source for a few house rules, and some "alt" character classes. I'm sure Paizo is anticipating a spectrum of responses, from "whole hog" to "barely any hog at all".
What I'm most excited about will be the continuation of 3.5 compatible adventure materials, and other rules extensions (like a monster book, for example).