Another beta of iOS 6.1 has dropped today, and it's available to all developers in the iOS Dev Center. Not only is there a new beta for iOS, but there is a pre-release version of Apple TV software available as well.

So far the most notable changes appear to be a new "Reset Advertising Identifier" button to change Ad tracking IDs, and reports of a nicer "first run" experience in Passbook.

As with all beta releases, logging in on the Developer Center will show the latest versions available and how to provision devices in order to install the latest and greatest upon them.