ATI just launched its long awaited AMD 690 chipset but this one is the integrated one. There will be more chipsets and Rx790 series is already scheduled for later this year.
The good thing about this chipset is that it can and will support Barcelona kind of processors and especially Agena FX and similar products based on the native quad core.
It also has the edge as it can support multiple R600 cards and Quad FX. It comes with at least two PCIe 16X slots and two socket 1207+ and of course it supports Hypertransport 3 at much higher speeds. Of course it supports Crossfire.