AMD's R600 mysteries revealed?

Now, the power connector story is a pretty interesting one. At present, there is actually only one design for both OEM/SI and retail/AIBs, and that one is 8-pin/6-pin. You can use 6+6-pin configuration, but if you do not plug 8-pin/6-pin, the ATI Catalyst driver suite will forbid you to enter the "Overdrive Zone".

Yes, you've read it right - the R600XTX is coming out with a legal overclocking mode, no nonsense and limiting overclocking to its partners like some other companies have. The clocks have not been set yet. Even AMD is waiting until a couple of days before the launch before it makes that decision.
http://www.theinquirer.net/default.aspx?article=37614