We're sure you know about the issues with some NVIDIA mobile GPUs, as earlier in July NVIDIA admitted it was taking a $150 - $200 million charge to cover (emphasis ours):

... anticipated customer warranty, repair, return, replacement and other consequential costs and expenses arising from a weak die/packaging material set in certain versions of our previous generation MCP and GPU products used in notebook systems. All newly manufactured products and all products currently shipping in volume have a different and more robust material set.

Since then both HP and Dell have admitted the issue affects their notebooks, but Apple has not. And the Apple discussion forums are starting to light up, with some asking if Apple is going to extend warranties to cover the issue, saying the product is inherently flawed:

I have a Macbook Pro with an 8600m GT graphics card that is a couple of months past the end of its warranty, this is a question out there for legal buffs, or other people in the know, are Apple obliged to extend the warranties on the affected laptops as they have sold inherently flawed machines?

To me it would seem to be a requirement for any company that sells a product that WILL fail to replace any product with issues free of charge.

The forums have several posts about MacBook Pros booting with no video, including this huge one here, with nearly 400 responses and nearly 10,000 views. A shared Google Docs spreadsheet has been created to track the issue apparently by the user eppsilon, and it has 125 entries at the time of this writing.