dwarfenhoschi's Journal: Gamer OS

So, I am wondering why noone has thought of this yet. A Gamer OS....an operating system which is specialized for games and gamers. I mean right now pretty much every gamer uses (or has to use) Windows, sure it may be able to handle games, but there is also much overhead which is just not needed for games. So what should a Gamer OS have ? What do we not need ? And more important, why hasnt anyone made one yet ?