Today, on Monday the 18th AMD will finally introduce the 2.2GHz Phenom 9500 and 2.3GHz clocked Phenom 9600. The 2.4GHz will be delayed until late Q1 and so will any faster Phenom. There won't be any 2.6-2.8GHz or faster parts until late Q1.
The B2 revision of he Agena based Phenom CPU works well at 2.2 and 2.3GHz, but anything faster have this infamous errata that can freeze the machine. This is why AMD only plans to launch 2.2 and 2.3GHz CPUs.
The BA stepping of the Agena K10 core was looking good and the B2 stepping was a production one, but this bug unfortunately found its place into silicon and AMD can't get around it.
AMD said on the record that Phenom 2.4GHz and faster parts will all be based on the B3 stepping and this one is planned in late Q1. It doesn't look good at all.