A post on the
Electronic Arts UK Forums outlines testing of the next patch for
Battlefield Bad Company 2, describing its intent of addressing bugs an performance issues, and noting that one of the things holding up its release it
Steam testing. Now
this post says this testing is complete, and the patch is expected on Wednesday: "The game has completed Steam QA! Expect the release in the wee hours of Wednesday Sep 21st (GMT). There will be a proper announcement on Monday Sep 19th." Thanks
RoadCzar.