OK, I love my cards to came with high clocks, if I buy GIGABYTE or MSI model I will pay 50-60e less, example GIGABYTE GHz Edition. You read better than I what will be if I decide after one year to OC.
For this card is not confirmed yet and if someone is interested can go on EVGA site to read about news but looks like EVGA will allow hard mode to overpass voltage limit. I would rather pay someone so brave to give warranty on such cards than someone who don't give you to change grace as GIGABYTE, ASUS, MSI...
50-60e will melt during next months and for one year such difference will be as nothing. I had GIGABYTE HD5870 they didn't allow me to change paste inside, I play on 90C later cooler was broken, before few months I sell card to guy who had turbine for that model. He replace paste and fix cooler because I couldn't do that under warranty and now he play on 75-76C. I didn't saw such temps more than year and I could do that but GIGABYTE say No warranty if you remove screws. I can remove them without damage. But they probably send card on forensic expertise before allow RMA.
SLI is excellent option but it's still not perfect.
AMD and NVIDIA need to work lot on dual GPU configuration for gaming.