Dual PCI-E (16x) for next-gen mobo?

[videopho]

Think of this possibilty...Having both ATI and NVIDIA g/c on the same system
Question: Will we ever see this? Or is it economically impratical or technologically imfeasible for now?

Imagining...We'd live in peace happily everafter....

 

[Soccerman06]

Actually, there already is a 4 gpu card being developed right now. Here is a little example of what it is.

Its basically a Nforce 4 with 2x16 pci-e (sli) and 4 slots. Because sli runs on 2x8 pci-e lanes, you can fit 4 cards in the pci-e lanes. The worse part is though, right now there is only a P4 version, no AMD version at all. I dont believe its even worth the money to use 4 cards because of many issues:

heat from P4
heat from 4 cards
more expensive mobo
2 more video cards
power supply price
space on board
apparently takes awhile to start up

Theres also the fact that CPUs are the limiting factor right now, adding 2 more GPUs will just increase the need for faster CPUs.

The only reason someone would need something like this would be someone who actually uses 8 monitors, I cant think of anyone except engineers and CAD users, maybe some sort of sim, who would use it.