Share in more ways
As Apple adds more ways to share data through services such as WebDAV, iCloud, Facebook, and Twitter, the iOS Share menu risks getting too big for the iPhone's screen. Pus, many apps use the Share menu for other purposes; the Photos app uses it to save an image as your wallpaper or contact card photo, and Safari uses it to add bookmarks to the bookmarks list, Reading List, and home screen. And many apps use it for printing.
iOS 6 has replaced the Share menu with the Share popover, with each option displayed as an icon. When the popover is full, navigation buttons appear below to switch to other panes with even more sharing options.