It may not be as important now as PCI-e 3 specification will not be released until 2011 instead of next year but with the PCI-e controller actually included in the CPU it will mean that anybody wanting to get PCI-e 3 goodness will have to change their CPU as well as graphics card & motherboard. I can see some people being a little upset.
Just as well they delayed it otherwise there might have been angry mobs storming Castle Intel next year over their obsolete purchases.
