The less rules you have, the more options you have. Having a set number of a mechanic like Feats is actually more limiting, as long as one has imaginative players.
Do you believe that OD&D didn't have fighters that used a Mighty Cleave on an opponent? It happened over and over, there just wasn't the need for a mechanic. Skills and Feats give you limitations, not liberations. Working with the DM/GM/referee is all a player needs to do anything in a OD&D, B/X. BECMI or 1E that anyone can do with 3.0+
But the Pathfinder book is very neat looking. If Paizo could have gotten Pete Mullen to do some art for the game it would be a bit closer to perfect.
Sorry for the derail, but I wanted to state my side of the equation.
I REALLY hate this line of argument. The assumption that things like skills should be the pervue of "DM fiat" proves that D&D began as a combat game. No game would go like this:
DM: The two orcs lunge at you! What are you going to do?
Bob: I kill it with my sword! I'm a trained warrior who lived on the borderlands for years, so I know how to fight orcs, right?
DM: Yeah, ok, you kill an orc. You know how to do that. Next?
Sam: Ok, I also grew up near a borderland, so I know how to kill orcs too, right?
DM: Well, you might, but you're a wizard so you have to suck at combat. The orc swings at you and cuts off your arm.
Sam: ...
Now, nobody would except a game like that, but its perfectly fine to assume the same when a fighter tries to climb a cliff, a thief tries to smooth-talk a guard, or a cleric tries to swim to escape a flooding dungeon, right? At best, they'll be treated as some "roll a die, if it beats the arbitrary number in my head, you win."
I like things like skills and feats overall. I like anything that doesn't require a DM playing "Mother-may-I?" to do things like tumble between a foe's legs, fight using my dexterity, or to figure out what spell a foe just cast.
Perhaps I gamed with too many DMs whose default answer to "Can I look outside the rules?" is "No!" to really buy the whole "less is more" view. Simpler? Yeah, it could be. But if simpler is best than
D02: Know No Limit is the best RPG ever.