Where was the Apple store coupon and credit card feature announced, that came with the eighth major iOS mobile update?
Apple Wallet:  It was designed by Apple Inc. and was presented at the 2012 Apple Worldwide Developers Conference (WWDC) on June 11, 2012. IOS 8: iOS 8 is the eighth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 7.
2012 Apple Worldwide Developers Conference