Screenshots from GTA4?

A friend of mine sent me a couple of photos that look to be environment screenshots from GTA4. This is definately along the lines of what people are expecting form the game, so these should make many people drool. We have no official confirmation as to whether these are real or not, but the damn photos do look convincing, that's for sure. Until we get official confirmation, all we can do is speculate. For now, enjoy the photos!