Nvidia Comes Clean About GPU Problem, Old News for Apple

"Nvidia is coming clean with Dell, HP and Apple owners who purchased some of the Laptops with discrete GPU "bumps" that sometimes caused failure. Apple went to extraordinary lengths (far beyond Dell or HP), covering Macbook Pros affected with these issues for up to three years and issuing refunds to those who paid for repairs."

I had my MacBook Pro repaired by Apple free of charge when the display died, caused by this very problem, and that was well over a year ago. If you have one of the affected machines and haven't had it in for repairs, you can find out more about it by reading this Apple support document. You can also go here to read the PDF of the settlement document from Nvidia.