IPad

Converting from iPhone to iPad
....   UIInterfaceOrientation UIInterfaceOrientationPortrait UIInterfaceOrientation~ipad UIInterfaceOrientationLandscapeLeft .... Class splitViewController = NSClassFromString(@"UISplitViewController"); if (splitViewController) {      UISplitViewController* mySplitViewController = [[splitVCClass alloc] init];       // ... configure, use, then release    }
 * http://stackoverflow.com/questions/2800190/ipadhow-to-convert-iphone-apps-into-ipad-compatible
 * http://www.raywenderlich.com/1111/how-to-port-an-iphone-application-to-the-ipad
 * http://useyourloaf.com/blog/2010/4/7/converting-to-a-universal-app-part-i.html
 * http://iphonedevelopment.blogspot.com/2010/04/converting-iphone-apps-to-universal.html
 * start iphone in portrait, ipad in landscape
 * or check to see if a class exists

UISplitViewController

 * http://www.cimgf.com/2010/05/24/fixing-the-uisplitviewcontroller-template/
 * http://blog.blackwhale.at/2010/04/your-first-ipad-split-view-application/
 * http://www.cimgf.com/2010/05/24/fixing-the-uisplitviewcontroller-template/
 * http://stackoverflow.com/questions/2475139/uisplitviewcontroller-in-a-tabbar-uitabbarcontroller

TabBar

 * http://www.edumobile.org/iphone/ipad-development/display-images-in-tabbar-application-in-ipad/

Safari

 * Polishing an iPad UI
 * Styling iPad UI Interfaces
 * MapKit and CoreLocation