AMD"s FORTHCOMING Opteron processor will support Microsoft"s trusty "security" initiative, Palladium.
Both AMD and Microsoft are members of the Trusted Computing Platform Alliance (TCPA), a body set up essentially to ensure the management of digital rights to content appearing on the Interweb. As such they are committed to the development of some DRM system to protect digital content from theft.
AMD has been working on a "Trusted Client reference platform" with Wave Systems Corporation and produced a white paper (pdf) outlining their aims some time ago. The paper discusses how Wave"s Embassy Trusted Client system would be intgrated into AMD"s Athlon motherboard reference designs.