Passbook example for the iPhone

http://blogs.captechconsulting.com/blog/jonathan-tang/ios-6-tutorial-integrating-passbook-your-applications
https://github.com/tschoffelen/PHP-PKPass
apps.tomttb.com/pkpass/full_sample/
www.raywenderlich.com/20734/beginning-passbook-part-1
www.raywenderlich.com/20785/beginning-passbook-in-ios-6-part-22
http://blogs.captechconsulting.com/blog/jonathan-tang/ios-6-tutorial-integrating-passbook-your-applications
https://github.com/tomasmcguinness/dotnet-passbook
https://www.passslot.com/developer/api/start
https://www.passslot.com/developer/api/start