Motherboard manufacturer MSI has laid claim to being the first to enable CrossFire support on an Intel P965 chipset.
According to a press release sent out today by MSI, it is the first to provide CrossFire for this particular chipset. The board at the centre of all this is the P965 Platinum. The board has two physical X16 PCIe slots, but while one has full x16 bandwidth, the other only has four lanes to play with.
A little look at MSI's website, either UK or global, reveals no CrossFire mention as of yet, but we expect the company is in the process of updating the website.
The details of how MSI has enabled CrossFire support on the board are nowhere to be seen, although the company's press release does state that "[the board] was considered for the multi-GPU support initially in design process". Driver or BIOS related, perhaps? We'll no doubt find out soon enough, along with whether only feeding four PCIe lanes to the second graphics card makes a big difference to CrossFire performance.

Update
It seems MSI preempted ATI's release of Catalyst 6.9, which includes CrossFire support for P965. However, only X1900s in Direct3D are supported in CrossFire by the driver on this chipset. Not voodoo magic from MSI, then, just new drivers from ATI.