LucidLogix Technologies intor's Unity, pretty much the Hydra chip that will enable graphics card vendors to create cards with multi-vendor-multi-GPU support. Plugging one of these video cards into your system will add HydraLogix multi-GPU graphics capabilities to existing motherboards allowing you to mix and match multiple GPUs / brands / vendors.
Here's the PR with all the details.
Today LucidLogix Technologies (Lucid) announced its arming video card manufacturers with the new Unity