I have a MBP 2011, I buy this thinking of doing some opengl 3/4 later, now that I need it, I cannot use it, only 2.1 is supported on my MBP, I am still on lion, I wont go to mountain lion since they are nothing really new in it, just the name and some dummy new apps that I dont care.
Today I called Appel Care support and asked for the lastest driver, Its sound like the new MBP support 4.2, but I am not 100% sure with mountain lion, I asked for an appointment in Apple store, I want they replace my MBP 2011 with a new retina that support the latest opengl driver.
ITs a feature that my computer is supposed to support, so its a apple problem, they need to change my MBP unless they release the new driver, but that will never append...
The only way to use OGL 3 ou 4 is to switch to windows or linux using the ATI driver, on mac ATI does not provide any driver, only handled by Apple, since they do nothing about driver since 2010 you need to change the computer.... I guess, but that will cost more for them if everyone do like me and return their computer to get the latest one...