wrong, the crack and the title update 1 for preloaded versions are already out, they've released few hours after the official one, feel free to pm torrent / etc
not gonna pay another 60€ for a gta iv optimization alike. i'll test it cracked before buying
edit: @Barney Phife do you think its AMD hardware optimized? or is that nvidia / intel
Rockstar worked with both AMD and nvidia to fully support it and optimise it however there are massive problems with AMD. People running high end AMD cards are have huge troubles running the game above 60 FPS with settings on low. However with nvidia, their update (which was released before the AMD version) seems to be perfect. I'm running GTX 780 SLIs (superclocked) and playing it max'd out at 4k resolution and have no issues.
The game did become corrupt for me over night though and I think it was due to the GTA V patch. I wasn't able to enter any cars or hear sound but a simple deletion of the game save folder fixed it.