iOS 6 comes with a Smart Banner system, which will show that there is an application in the App Store for any Web apps that you might visit in Mobile Safari (assuming that there is actually an app for it). Tapping on the Smart Banner will allow you to download or open the application pertaining to the Web app you were using and the app would continue where you left off on the Web.
Back in the middle of December, it was found out that there was a glitch
According to a report from AppleInsider
, the Smart Banners glitch has been fixed in today’s public release of iOS 6.1. Apple notes the fix on their "Security Content of iOS 6.1" Web page
, which was launched just today following the public release of iOS 6.1