It's no further apart than the ASUS SLI mobo and they have the SLI widget that connects the cards for it.
As to the SLI bridge on the board itself it's quite possible it's done in the bios now since there was talk about implementing mobo's without a physical bridge.
Phenom II 940 Black Edition quad core @ 3.5Ghz
2x1 gig OCZ PC26400 Platinum, 2x1gig GSkill PC26400
Upcoming EVGA GTX470
Some other stuff,
Even more stuff,
If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, killing everyone inside. --Robert X. Cringely, InfoWorld magazine