http://musformation.com/2009/04/coldplays-best-defense-against-satriani-if-i-was-their-lawyer-they-would-win.html
Heres also the most thorough article on the 60 minutes special that I have seen.
http://musformation.com/2009/03/the-rules-coldplay-live-by-and-what-your-band-can-learn-from-them.html