I don't believe it for a second.
#1.) Website is not reputable enough for me to care. They wouldn't have this sort of info before say, IGN or Gamespot would.
#2.) It wouldn't be the first time someone disreputed Sony in a retarded manner through the use of a website (Anyone remember 'gamefun.com' links to stories about Sony going out of business?)
#3.) There is nothing that could possibly happen to delay a machine already so close to finished for that long. If they were going to be delayed they wouldn't delay a year, they would delay as short as possible and delay multiple times if necessary.
#4.) All this aside, developers have been building games for this machine for a long time. If it had some horrendous hardware or software flaw, it would have been known about long ago.
#5.) Game companies never publicize the reasons behind their release changes, nor their personnel changes.
#6.) 'An anonymous gamestop employee.' Need I say more?
#7.) Sony produces hundreds of hi-tech multimedia devices in dozens of avenues of home entertainment. I'm pretty sure they know how to keep their equipment from overheating.
#8.) Computers don't use 'coolant.' Computers use heatsinks, fans, and ventilation. Something as small as the PS3 has no need to use 'coolant'...if it did, it would be using like, liquid nitrogen to cool it, and the point of that method of cooling CPUs is because it doesn't take nearly as much circulation of 'coolant' to keep a CPU frosty as it does fans and heatsinks. So the idea of having 'not enough coolant' is just retarded.
#9.) Even if it was all true, I doubt it would take one of the biggest electronics companies in the world a YEAR to repair a big obvious problem like 'not enough coolant.' A month, tops. It could all be true but I doubt it will affect the launch cycle of the machine...I mean, remember, it isn't due for a very long time coming anyhow...do you really think that in addition to their already lengthy development cycle they'd need an ENTIRE EXTRA YEAR to do much of anything?
So unfortunately for the moment I remain skeptical as well. If it's true then it will be publicized soon enough. And for the Record, Brim--the company that makes the PS1 and PS2 is fully named 'SCEA' which is 'Sony Computer Entertainment ... well, the last word is obvious enough. So I'm pretty sure they aren't based in Japan.
That's my story and I'm sticking to it. Heh.