We learned that G92 will feature some minor changes from G80 chip. It will be a 65 nanometre chip with significantly higher clock than G80's modest 600 MHz and it will feature PCIe 2.0 support.
The card is suppose to be launched sometimes in early Q4 to meet the Xmas shopping madness and Nvidia is still on schedule.
PCIe 2.0 is the new specification that lets graphic card manufactures to get more power for its graphic card and with this new standard Nvidia and ATI can enjoy about 300W per graphic card. Intel X38 chipset and ATI's RD790 and variations should support this standard and Nvidia will have one of its own soonish.
We expect these new chipsets at autumn time as we seen them up and running at Computex last week.