Just thought I'd update everyone about Resolve in Moutain Lion on a rMBP. I just tested it and it works now. I think the difference was the new CUDA drivers that were released today, because everything else was the same as when it failed. The new CUDA driver release today was a slightly higher version than the 5.0 beta version I tried about 5 days ago. So I have a new non-defective rMBP, Mountain Lion, CUDA driver 5.0.17, and Resolve 8.2.2 and it works. R3D Data Manager 6.4 works, RedCine-X Pro 14 works with the Rocket, and Premiere Pro works with the Rocket. And Mountain Lion is A LOT faster than Lion.