Specifying a Startup Image
On iPhone OS, similar to native applications, you can specify a startup image that is displayed while your web application/website launches. By default, this image is a screenshot of the web application with the page that the user has visited the last time. If you want customize it, add a link element to the webpage, like this:
<link rel="apple-touch-startup-image" href="/startup.png">Copy this code to the clipboardView plain text1<link rel="apple-touch-startup-image" href="/startup.png">