This is something we've already written about, as the first time we reported about this new socket was back in November 2009 here. This time around, however, we've got a confirmation that this is the way to go.
The new CPU uses a modified socket AM3 r2, and its still not clear if this socket is completely compatible with the existing AM3 socket. Something must have changed as AMD 990 chipset is also in the works, despite some early reports that AMD 890GX /GX chipsets will support the new Bulldozer core.
Let me remind you that Bulldozer is a highly anticipated 32nm quad or eight core (six should also be possible), 8MB L3 cache, DDR3 1866 support and the first CPU to come with this core is codenamed Zambezi.
The Zambezi CPU fits in Scorpius platform and it is all planned for some point in 2011, but we don't know which one as of yet.