Although I have been interested in tabletop RPGs for a very long time, I very rarely have an oppurtunity to play: one weekend a year, at a convention in my area. Although I likely won't actually be able to participate in the playtest, my curiostiy got the better of me, and I downloaded the playtest document. While I haven't had an oppurtunity to read it through exhaustively, I'd like to share some of my initial thoughts.
ART
That a playtest document contains full-color illustrations is remarkable, but I particularly like the quarter-page single-character portraits in the Classes chapter, becuase of their large and expressive faces. My two favorite pieces are the Barbarian on page 12, who looks like she's about to go totally totally mideval on someone; and the Druid on page 23-- Gnomes are cute!
The only illustration I actively dislike is the one on page 8. There are too many figures in such a small a space, and the character's faces don't really have much detail. The characters all seem too angular, even the hair, which is all spiky. Mr. Elf is considerably taller than is traditional for an elf, and his sculpted physique doesn't really suggest Elven grace. Also, please find some clothes for these people!
Now onto the crunchy bits.
RACES
I like the net +2 ability bonus, and that every race gets some free weapon proficiency. Humans are now the only race without a racial language... why not give them one? It's no more unlikely than the human language being adapted by every other race as a lingua franca. (Actually, I think the best way to deal with languages is to divide them according to countries rather than races, and give everybody Common + their local language for free.)
Elves are immune to sleep, and get a bonus to enchantments; and Gnomes are good with illusion spells. In short, the same bonuses they've had since 2E. Meh.
CLASSES
Barbarian: I never really liked this name for the class, since it just means "someone uncivilized." I like "berserker." Well, that's neither here nor there.
I like the mechanic of rage points, and the concept of "rage powers," but a number of the rage powers presented seem unthemely. Clear Mind, Elemental Rage, Low-light vision, Darkvision. To me, "raging barbarian" means: "crazy attack frenzy, while disregarding personal safety; mindless engine of destruction." Rage powers ought to be about hitting harder and faster, ignoring the hits you take, terrifying your opponent, throwing him around like a rag doll, and forcing him to stay on the defensive. So stuff like Animal Fury, Knockback, Powerful Blow, and Intimidating Glare are really great. Perhaps there could be a rage power that makes an opponent loose their iterative attacks? Or animal totem powers?
Sorcerer: Paizo has done something really great with the Sorcerer class. They made it not suck. :-) Bloodline abilities look pretty awesome.
SKILLS
Falchion: 75 gold pieces.
Chain mail: 150 gold pieces.
A better skill system: Priceless.
I LOVE the elimination of crossclass skills, and that skill ranks are awarded directly so there is no bothering with skill points. I would have expected Wizards and Sorcerers to get more skill ranks, though. Fly skill looks pretty interesting.
MAGIC
No more burning XP? Great.
"Read Magic" is still a spell? IMO, any mage worth his salt should be able to read magical writing without half trying. Better way to handle this is a class feature.
The "Atonement" spell gets mentioned a couple of times throughout the book, but aren't doing pennance and getting absolution for sins
just plot points?