Cat 11.6, SDK 2.4
Ubunutu 11.04, phoenix 1.50

cards - 5830 1000/300, 6870 945/1050
phatk 2.1 - 324, 299
phatk 2.2 - 323, 298

Slightly slower on 2.2. I've listed it as 1 MH/s slower on both cards, but in fact it's more like .5 or less slower.