http://www.hexus.net/content/item.php?item=7436

I'll leave you with a few snippets.

As many of you know, ATI R600 should be with us now. ATI's AIB manufacturing partners are gagging for it. The biggest trouble they're having is that there are no GPUs floating around. None.
If the AIB's don't have even the cores by now, there's no way this is hitting a january launch, even february would be pushing it...

ATI has looked at water-cooling and traditional air cooling. But, the speed of the processor and its resultant heat output have meant that ATI also had to consider more complex hi-tech solutions.
Air cooling and water cooling both won't handle it? More complex hi-tech cooling needed than water? Sounds like for ati to reach the speeds it needs to beat the 8800GTX it's going to need to be pushed wayyyy further than air, or even water, can take it.

At the heart of the cooling problem, though, is the R600's power requirements. These are nothing short of laughable at the moment.

With the clock speeds the company's looking to deploy, R600's requirements seem like they're going to outpace those of NVIDIA Quad parts. Cooling issues only make things worse and it's still unclear what steps ATI can take to solve these dual problems.
Higher power requirements than quad sli???

Ladies and gentlemen, it would appear this might be the beginning of ATi's true "FX Mistake". A delay from their previously intended launch of january/february means now it's march or later...

The inquirer was just caught in their lies.