This is a new updated river in the series 280 family of drivers. This driver package supports GeForce 6, 7, 8, 9, 100, 200, 300, 400, and 500-series desktop GPUs as well as ION desktop GPUs. This driver package also includes the 3D Vision Controller driver.
The driver is actually a development driver supporting OpenGL 4.2 We have a discussion thread open on these drivers right here. Initial experiences seem pretty good with this driver.
Have you read our MSI GeForce GTX 580 Lightning Xtreme edition review already ?