Nvidia Releases Linux Graphics Drivers 319.12 Beta With Initial Optimus Support

Nvidia has released a new beta version of their Linux graphics today: 319.12, which includes quite a few changes, including initial Optimus support.
Nvidia Optimus is a technology used to increase battery life by switching the dedicated GPU (Nvidia) off when it's not needed; when the dedicated GPU is off, the integrated graphics chip (Intel) is used. Until now, Linux users could take advantage of this technology through an unofficial project called Bumblebee.