Well as mentioned above there's the 8/12 core AMD server chips already. The Intel Xeon X7560 server chip is also 8 core, apparently released last month.
For desktop mobo chipsets though, I'd guess Q1 2011. It depends how they can fit it into the current platforms LGA1156/1366, as the Xeon X7560 is using LGA1567.
Affordability is another question though.
X7560 info
For desktop mobo chipsets though, I'd guess Q1 2011. It depends how they can fit it into the current platforms LGA1156/1366, as the Xeon X7560 is using LGA1567.
Affordability is another question though.
X7560 info