According to AnandTech's sources the Phenom B3 revision processors should be ready in early April. The site also says that AMD will change the product designations of these chips to differentiate them from the B2 revisions which are plagued by the TLB errata.
Unfortunately, we will not see a significant increase in bin speeds as the new models are coming in at 2.2GHz (9550), 2.3GHz (9650), and the 2.4GHz (9750). It also appears the current pricing structure will remain somewhat in tact although a final decision has not been made by AMD. Also, there will be a BE edition, but once again whether that will occur with the 2.3GHz (9650) or 2.4GHz (9750) is not finalized.
We originally expected the 2.4GHz (9700) and 2.6GHz (9900) parts to be released in late Q1, but after the TLB errata fiasco, those products were basically dropped in favor of getting the B3 series ready. Our sources indicate the Phenom 9950 being launched in late Q2, possibly Q3 at this time with a clock speed of 2.6GHz. This places AMD once again in an awkward position of not being able to respond in a timely manner to Intel's new Penryn based Quad-Cores that will be available shortly at speeds anywhere from 2.5GHz (Q9300) to 3.2GHz (QX9770). The current 3.0GHz (QX9650) being available for a few weeks now.