Apple has just dropped its first update to iTunes 10 with iTunes 10.0.1 and it brings Ping Sidebar to life along with some critical bug fixes.

We just installed the update and Ping Sidebar is essentially a glance at your Ping friends and artists activity right in any of your current iTunes windows. Whether that be your albums or playlists, you can now always take a peak at the recent activity you *surely* care about. Here’s a screenshot: