Exactly... see you have to understand we are not developing drivers just for Dell... our mobile drivers are optimized for all notebooks. Yes flashing your video card BIOS will achieve results... but like many people have found out in the past, being able to simply reset the system to restore the clocks to default is a wonderful thing - especially when troubleshooting.
Another thing to keep in mind, is that it's highly unlikely that NVIDIA is permanently removing overclocking from their drivers. The drivers you can download from laptopvideo2go.com are often times nightly, or weekly builds of the drivers - which quite frankly are not normally design for the general public to use. More than likely what is happening here, is a troubleshooting scenario. They could be potentially trying to find a better way to design the overclocking subsystem, or for that matter the overclocking calls in the driver could be interfering something they have added to a new driver. Whatever the scenario you can almost be certain that they have not PERMANENTLY disabled overclocking forever...
The Mobileforce 169.09 driver release is relatively stable and performs well. The minor version changes they are making currently do not necessarily net any great gains in any particular areas. Since most of our users are generally power users, it only makes sense for us to wait until they rebuild the normal overclocking functionalities back into the driver. So you likely won't see a new Mobileforce release until we either hear something from NVIDIA about why overclocking no longer works, or until it just starts working again.
We thrive on producing top-notch drivers that make everyone happy. Overclocking is kind of a big thing, so waiting at this point just seems like the right thing to do. We do appreciate your patience, and trust us - we are just as excited as you guys are about getting some newer drivers.