AMD/Nvidia/[Insert Vendor Name Here] doesn't give a flying rat fart about the Bitcoin mining community - All these posts where people say, "I can't find any AMD card, AMD must know they're missing a huge opportunity and they'll make more cards!" are just silly.  No, they won't make more cards and they don't care.  We are small potatoes, a blip in their earnings.  In Q1 of 2011 AMD sold 19 million cards, and in Q2 they sold another 16 million.  Yes, we buy lot's of cards, but we're such a tiny part of their market that they're not going to change they way the operate because of us.  As I'm writing this, the current network is clocking in at 11.13 TH.  Just for arguments sake, let's assume that's all made up of GPU's with a conservative hashing rate of 200 MH/s.  That's about 55,650 cards.  (Someone correct my math if it's wrong, 11.13 TH / 220 MH | 11130000000000 / 200000000).  IF my math isn't off, then yeah...they sell that many cards every 7 hours.  We're a rounding error