I finally saw it tonight, and I agree that it's not "a Bond movie" in the sense of those that have come before. And yes, I think it owes a lot the Bourne stories, which is probably fair since they were made with a nod to Bond. This is a reinvention of Bond from the ground up, a "retconn", and I think a very successful one. While I was initially skeptical of Daniel Craig, he managed to nail the tough-guy-agent parts far better than I thought he would, while adding something unique: his may be the first truly human Bond ever to hit the screen. Oh, there were hints of sensitivity in the Dalton Bond, little chinks in his svelte, cool armor, but not full blown complexity.
Suffice it to say that while I enjoyed many of the Bond films I always considered them fluff, and no matter how serious a situation attempted to appear there was always a cartoony level of absurdity that precluded them being taken seriously. This Bond is different. It's easily the best Bond film yet made, IMOHO. And you claimed that Daniel Craig is the best Bond yet...well, I wouldn't laugh you out of the room. I'll always love Sean Connery's wonderful portrayal of that cartoon-ish secret agent from my youth, but Craig takes the franchise in another direction, one that can actually be taken seriously as cinema.
Casino Royale isn't perfect, but for the first time in many years I'm actually very anxious for the next Bond film.