Considering ATI/AMD usually gain quite a bit over the first 3-6 months with driver tweaks, especially for the X2/Crossfire implementation, this looks damn good!

You get 4870 X2 / GTX 295 level performance with less power draw from a single card for money about equal to what the X2 goes for in most places (and about $100 less than the 295)

I'm a bit skeptical about how a single 4870 will drive 6 displays well (keyword: well) but I guess I'll just have to wait & see.