Grand Theft Auto V teaser site?

Okay, i was searching over the internet looking for some news around the (probably) upcoming videogame GTA V. As i continued searching, i've found this (possible) teaser site: http://www.gta-five.com/ can anyone tell if this is actually the official teaser site or just a joke? It seems pretty real because the official rockstar logo is displayed on the page and it does link to their official site. But i haven't seen any other people posting this as news or something and i pretty much doubt i have found the official teaser site before anyone else did... what do you guys think?