This is an interest question.
Even though we compete against 9600 and 5700 etc. we do have some special advantages - one of which is our very low power.
So it is possible to have a DeltaChrome solution which does not require a FAN.
The thermal cooling could affect the "over-clocking" head room of a board but has many other advantages - no more failures due to "bad" fans and no noise!
We will support our board vendors should they wish to produce a passive cooled solution.