I'm just wondering the general consensus for how long anyone thinks that the first generation of the Unibody MacBook Pros will be supported, the ones with the 9400m or 9600. I do understand that no one knows for sure, but maybe someone knows something I don't, and I would at least appreciate some opinions and input. I personally own two, as well as a few other more recent machines. With Mountain Lion out for a few months now, I can't help but wonder how long these machines will be supported in terms of being able to upgrade to the "latest and greatest" operating system. Even the late and early '08 machines lost support with ML, about 4 years after they were released, due to the 32bit bootloader issue. Is there anything that is similar to this scenario with these newer models, or any major technical difference besides the graphics on the Late '08, Mid '09, and Mid '10 models that could be a reason for discontinuation of support? At this point in time, I'm beginning to think that the graphics card could be the next big limitation.