I'm using a GeForce 8600M GT included in a Sony VGN-AR770.
Let me just say, I was using the MobileForce Se7ven version 190.38 for years. After I re-formatted and installed Windows 7 64-Bit, it was the only driver package I could find that was compatible with my machine. I believe it to be the best mobile driver package out there, not only for its tweaks but its high degree of compatibility.
I recently came back to the forums searching for a newer version, since I finally needed to update in order to play Battlefield 3, which requires 285.38.
I was disappointed when I found 260.99 was the last version, and almost a year old. BTW, the MobileForce 260.99 was the first 2xx series drivers that I was able to install on this machine. Anything else from TweakForce or Nvidia directly has not been installable.
I downloaded the official WHQL 285.38 and 285.62 directly from Nvidia as well. Although they claim those unified driver packages are compatible with the 8600M GT, I cannot seem to get them to work or even detect my card upon installation.
NOTHING works as well as the NBF MobileForce drivers! The installation is care-free and always works!
Please make them for version 285.38 or higher (285.62 if possible)!