It looks like Toliman Triple K10 core is still on schedule for Q1 2008. We learned that AMD plans to launch it in March.
The Tri-core will use the existing AM2+ socket, it comes with 2MB of L3 memory and, of course, it is 65nm-based.
It should be followed by B3 version of quad-core K10 and, of course, AMD plans a new 45nm Tri-core, but this is 2009.