The hardware isn't the problem - the hardware is already finished - but the software is still problematic.
The software is to blame, as we know that the hardware is already out, but obviously Nvidia couldn't get rid of some ghosts and glitches and it decided to delay the product.
We will follow up with more details when we get them, but currently Nvidia’s primary focus is to get as many G92’s out as it possibly can. There is still a chance that people such as Alienware and Voodoo PC might showcase it this year, but the retail products, mainly the motherboards with the right drivers won't make it this year.