Intel's next-gen Westmere 32nm based six-core CPU, the Core i7 990X Extreme Edition has been announced.
The 990X will have a stock frequency of 3.46GHz and have OC abilities up to 3.73GHz. 130W TDP, triple channel DDR3 support and a total of 12MB of cache. The $999+ pricing will have your wallets hurting.
Of course it has no integrated graphics (oh noes!), it will only "officially" support DDR3 1066 with unofficial support far beyond the 1333MHz mark. Q1 2011 seems to be the launch quarter, with a faster version in Q2.