Congrats Paizo! I'm so happy to hear that I can continue playing based on 3.5 without having to spend tons of $$ to upgrade to 4E.
I DL'ed and printed up my copy of the alpha rules yesterday and have been reading them. I'm psyched about the new skills system and the increased feats. I definitely want to try playing a rogue with the changes you've made to the class.
Question: Will there be any test mods made for those of us who are too lazy to convert old mods but still want to playtest?
For those who are hell bent on moving to 4E without giving Paizo's system a try, why be so shallow? Learn another system. It's free, what do you have to lose? There is no law in the RPG universe that says you can't know more than one system. The great thing is that both 4E and the Pathfinder system are offshoots of 3.5 so how hard could it be? It's not like they're asking you to play a d6 or d10 type system.