The NVIDIA 304.60 certified Linux driver that was released today fixes bugs concerning the X.Org Server, RandR, OpenGL stereo, exposing GPU memory utilization information, support for the RandR backlight output property, a Unity launcher bug-fix, and various other fixes. So the 304.60 update is mostly a bug-fix release, but there's also a couple extra features that were introduced too.
linux-3.7.x didn't worked with 304.60, resolution:
http://www.nvnews.net/vbulletin/showthread.php?t=194465