Macxtrem
He has actually pushed the clock speed of his 15" 1.5GHz PowerBook to 1.83GHz.
Take great care if you set about overclocking a laptop. It's a very delicate job, the effects of which might impact on the reliability of the laptop.
http://www.macxtrem.com/articles.php?article=124
[Translator's Note - note that the article is in French. If we can get permission, and can find the time, to translate it, we will try to do so. In the meantime, good luck with Babelfish!!]
