Captain Picard said:
What 4th Edition should have been:
http://paizo.com/pathfinderRPG/prd/
No.
Look, I'm not a big fan of 4e myself. I don't hate it as much as some do, but I simply prefer 3.5e. Part of that is for the same reason I prefer Firefox over Chrome. I've hacked, modified, and house-ruled the whole thing to hell and back, and I'll be damned if I start it all over again for the new hotness. The other part is just "they changed it, now it sucks" rearing its ugly head. As a system, I have almost no problems with 4e.
Anyway, to the point, pathfinder shouldn't have been 4e because it doesn't really bring anything significant to the table. It's basically just a collection of house-rules for 3.5e. It's more like 3.5.5e or something, and for someone who has been playing 3.5e for a long time it's utterly pointless since I prefer my own modifications over those of Pathfinder.
I'm certainly not saying that Pathfinder is bad, because it really isn't, I'm just saying that it's pointless. In comparison 4e is a complete re-imagining of the D20 system, which is why it's a whole new edition. I'd personally prefer Pathfinder over 4e, but saying that Pathfinder should've been 4e just means you're missing the point entirely.