The one reservation I have from these awesome screen shots is that I am hoping that these are organic moments in the game, not planned out or semi-scripted mission sequences. GTA4 screen shots showed off a lot of wow early on, and because of the nature of GTA:SA, VC, and III, gave you the impression that those -wow- moments were organic.
In GTA4, there were a bunch of screens that hinted at that organic gameplay -
- The helicoptor dropping police/FIB agents onto your truck on a getaway/multiplayer mission
- Players holding onto the backs of trucks and flying down the street
- The helicoptor train stuff from the DLC (by this point, I doubt anybody really thought that this would be organic because we had played GTA4, but if you showed this before GTA4's release you might have thought that was possible)
But, in the end, those were all very controlled, scripted mission sequences that you couldn't do on your own. It was a major let down for me. My friends and I tried unsuccessfully for some time to jump onto the back of cars and trucks in multiplayer, but alas, you could not... your guy just glitched out and hung onto nothing. And the scene of agents dropping from a chopper onto a truck was a complete aberration.
So when I see the sky diving with a train passing through a mountain pass and scaling the Vinewood sign, I'm hoping that those are organic moments in the game, not scripted sequences that you only do in a mission under controlled circumstances.