It was pretty obvious...
Hopefully if Apple releases the 5870, we can get the 5970 working in the same manner we got the 4890 working.
no...
we can get it to work in the same manner as 4870x2. aka, with injectors, and only 1 core working, aka a 5870.
5970 = 5870x2
no card like the 4890 has been announced for 5000 series yet