Replacing the iMac Core Duo's CPU

Dambo reports on the Japanese paper magazine MacFan which has an article on the replacement of the 1,83GHz Core Duo chip in an iMac with a 2GHz stock Core Duo chip!
We can't tell you more for now, since the article is print only, but our correspondant w00kie is currently working in Japan and he's gonna try and get his hands on a copy.
If true, this is an excellent news, since it opens the door to easy CPU upgrades which, until now, had to go through expensive upgrade cards.