wbmw, thanks, that confirms what others here are saying - especially upc - that the ratings are not comparable to each other. Your example adds empiricle evidence to a theoretical discussion.
I am very, very disappointed in AMD today!
P.S.: So is the market. AMD went down going into the announcement and continues to go down more than the market. One would expect that they would get an announcement bounce after the past week's activity (the inverse of 'buy on rumor, sell on news').
This is despite the great implications about 90nm production.
The market thinks that AMD just shot itself in the foot, and I have to agree.