Slushs pool holds too small a market share of hashing. Slushs is only 2% of the hash power... its only going to get worse as the two or three largest hashing pools get even bigger. Ghash, BTC Guild, and Discus... Heck even Eligius are way to big. Its unfortunate that they could not have worked some more even distribution limits into the BTC math to keep it more evenly distributed. Those big ones should burn to the ground... seriously... They should all burn...