Originally Posted by Callum x360a
I don't think those pictures are actual shots of the game. To me, those are just GTA IV mods. There is a guy that has recreated the state of San Andreas on the PC version of GTA IV, so I'm inclined to believe that these are pictures of it. If not, then possibly a mock up.
Also, the picture with the character has the same stance as the GTA IV models, and the gun is the exact same as in GTA IV. The graphics are also the same, while the trailer shown otherwise.
You're right it is a GTA IV Mod, tbogt I believe. And the map is fake saw it the other day on this website http://www.gtaforums.com/index.php?showforum=239