Apple has released iTunes 8.2.1, squashing a few bugs from the initial 8.2 release. On the Support Downloads page they mention, "iTunes 8.2.1 provides a number of important bug fixes and addresses an issue with verification of Apple devices."

In normal Apple fashion the update notes are a bit short on details, but we'll definitely take any bug fixes we can get. You can download this update by opening Software Update (Apple menu > Software Update), or by downloading the installer package from the Apple Support Downloads page. 

Update: PreCentral.net is reporting that the iTunes 8.2.1 update breaks the syncing between iTunes and the Palm Pre. If you have a Palm Pre, you may want to wait before updating to the new version of iTunes.