I don't plan on returning my SB either. I will wait it out for 3 months or whatever it takes for them to get the exchange process going. I just hope they do some sort of cross-exchange thing so I wont have to be without a comp for a week, they owe it to us for releasing the chipset with this problem.
No reason to return the damn thing! haha just keep it and enjoy it. The mobos work perfect, even on SATA3 mine worked perfect. I just set it up on 6 because it's whats recommended afterall. When B3 comes out, exchange your board.
supposedly 5% of motherboards might fail within 3 years. im sure you can continue using it until a replacement comes off the production line in a month or two.