Red Giant Software this morning released Primatte 4 for After Effects and Avid, as well as (now) Premiere Pro and Final Cut Pro. This version also adds an automatic matte selection feature which Red Giant claims is useful with many well shot and lit, straightforward blue and green screens. Performance has been improved up to 3x on Windows in addition to new support for MacIntel systems. Upgrade price $199, full version $499 from Red Giant Software.
Look for a more in-depth review of Primatte 4 and how it compares to the competition on this site soon.