Got an email from Benson, there was an error in the original presentation.
Official release will be made in a few days.
Here is the correct information:

65nm Desktop Dual-Core Processors Stepping: B2 G0

• Intel® Core™2 Duo processor E6000/E4000 series 80 90 °C

• Intel® Core™2 Extreme processor X6800 80 90 °C



65 nm Desktop Quad-Core Processors

• Intel® Core™2 Quad processor Q6000 series 90 90 °C

• Intel® Core™2 Extreme processor QX6000 series 90 90 °C

• Intel® Core™2 Extreme processor QX68XX 80 80 °C

He's still confirming information about the server parts.

I'm still not quite sure about the 80C for the QX68xx parts, but these values look better than the original ones anyway.