When it launched with iOS 6 this Wednesday, Apple's Passbook mobile-ticketing feature boasted a handful of high-profile partners -- including Fandango, Live Nation, Lufthansa and Ticketmaster -- but that list still leaves plenty of room for fleshing out. According to Venture Beat, AmEx is launching integration with Passbook later today. The credit card company's Passbook functionality will include notifications for new account transactions, along with the abilit
