The PCI-SIG group released v2.0 of the PIC Express protocol. It's cool but not earth shattering.
PCI Express Base 2.0 specification doubles the interconnect bit rate from 2.5 GT/s to 5 GT/s in a seamless and compatible manner. The performance boost to 5 GT/s is by far the most important feature of the PCI Express 2.0 specifications. It effectively increases the aggregate bandwidth of a 16-lane link to approximately 16 GB/s. The higher bandwidth will allow product designers to implement narrower interconnect links to achieve high performance while reducing cost.
More than adding speed to your computer, this will more accurately remove a bottleneck. It's important, especially to the gamers, but I don't know that it's lived up to the hype about it.
