Adobe's now released the official, bug-free update: Lightroom 3.2. Besides adding several camera profiles, it includes more than 120 new lenses profiles. Adobe's Tom Hogarty has a complete list of the profiles added.
LR3.2 also now supports direct export to Facebook and Smugmug. Part of the program's ever-expanding Publish Services feature, they join the Flickr export feature included in version 3. If you haven't used the Publish Services feature, dive in: It makes exporting much easier. My book explains it in detail on pages 244-255.
The final release of Adobe Camera Raw 6.2 is also now available on the same page. And, there's an important bug fix for Adobe Bridge CS5, a program that I assume most Lightroom/Photoshop users depend on as much as I do.