David Kanter from RealWorldTech has written a 9-page report about AMD's upcoming Bulldozer architecture, you can read it over here.
In this context, AMD has stepped away from their historic design point and re-evaluated their approach to the x86 market. Rather than pursuing one core to address the vast majority of the market, they opted to develop two new microarchitectures, Bobcat and Bulldozer. Bobcat is focused on low cost, low power and GPU integration for notebooks and low-end desktops. Llano is focused on higher power and performance with GPU integration, but uses a derivative of the existing Istanbul microarchitecture. Like the original K8, Bulldozer is first and foremost aimed at the high-margin server market and may be used in performance sensitive desktop systems as well.