* Add autorelase for memory management. * Add mutable and immutable classes. * Add custom UITableView and UITableViewCell. * Add camera and photo library access. * Remove ASI connection reference since the framework is deprecated. * Add Grand Central Dispatch for concurrent tasks. * Add closures instead of blocks for new code. * Add UIStoryboard for flow definition. * Added CocoaPods for dependency management. * Add universal apps. * Add iPad specific views.