Microprocessor Report 970 Overview Article
MacBidouille posts a link to this Microprocessor Report Reprint from October 28, 2002.
The PDF summarizes much of the information on the PowerPC 970 which was presented at the Microproessor Forum in October, 2002 by Peter Sandon. A PDF of that presentation has been available since November.
While the article provides little new information, does give a good overview as well as comparison of the 970 as compared to the other PowerPC chips. Information may have changed since the time this article was published.