CJ sent along this piece of info on the upcoming ATi Catalyst releases. Seems like AMD is stepping up effort on Crossfire support especially when RD790 chipset is around the corner. We can expect to see Single Connector Crossfire in Radeon display driver 8.41 next month, Software Crossfire in 8.42 release by October and Crossfire Overdrive in 8.43 release in October. There is even Tripod and Quad Crossfire support in 8.46 release by December and Extended Desktop support in 8.47 release by January next year.

8.41 Aug/Sept: Single Connector CrossFire
8.42 Sept/Oct: Software CrossFire
8.43 (Oct): CrossFire Overdrive
8.44 (DX10) / 8.46 (DX9) Nov/Dec: Quad/Tripod
8.45 (Vista only, 2 displays)
8.47 (XP) Dec/Jan: Extended Desktop