If you've been using iOS 6 beta, they you're probably pretty familiar with the default Passbook screen that prompts you to open the App Store. Prior to iOS 6's release just a few hours ago, the App Store page wouldn't load, or at the very most remained blank.
Today, all of that changes. If you open the App Store link from the Passbook app, you'll be presented with a introductory list of apps that currently support the fledgeling venture.