According to http://developer.apple.com/library/IOs/#documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplica

According to http://developer.apple.com/library/IOs/#documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html http://developer.apple.com/library/IOs/#documentation/AppleA... you can do this for iOS. To add a splash screen during loading, create a 320x460 .png file, and then link to it in the header: <link rel="apple-touch-startup-image" href="./startup.png" /> I've actually never tried this.