I find it amusing the lengths some people would go to make a fake. Even taking a picture on a camera phone (I'm assuming) of a TV displaying images - to give it that authentic guerilla photography look. They've even dropped a little bi-plane into the RDR screen to sell it a little more. Because bi-planes were in the trailer, don't ya know?
The map is interesting because it's pretty intricate, but is probably just a medley of different map elements from IV and SA, then dropped into IV on the PC. I'd like to believe they're legitimate pictures, but after so many fakes I just tend to treat any 'leaked' info or footage to be bullshit. Once Max Payne 3 is out of the way, I'm assuming Rockstar will whet our appetites with an extended trailer for V. I'll wait for that.