NVIDIA drivers...do they ever get updated?

Recently switched from ATI to NVIDIA and in the time I have had my GTX570 there has not been even one revision of the 266.58 drivers. Is this normal?

Do I actually need new drivers, well not specifically, but some speed gains across the board would not go amiss. I am just baffled by the lack of updates by NVIDIA.

Thanks

They have updates when there new cards come out and usually not before.
No sense in just throwing updates out when they are not needed.

If you download the EVGA Precission software you can use it to tweak your GTX570

http://majorgeeks.com/EVGA_Precision_d6209.html

270.51 is the latest beta.

There has also been a 267.24 beta.

The latest beta includes an automatic search for new versions function.