The mystery is solved, ATI Crossfire cards will work on Intel boards in future. The new P35 chipset still has support for the AMD Crossfire marchitecture.
At least one good news for Intel chipset lovers who have one or two ATI cards. It looks like there won't be any SLI support for Intel's own chipsets anytime soon and Intel will keep supporting Crossfire in this generation of chipsets. The current and next generation Crossfire cards will work with this chipset.
So the P35 will be a decent swap for the quite successful P965 motherboards and we hope that P35 will be an even better overclocker.