>I am wondering what is the Web site setting necessary to have an icon on the iPhone when we save a Web site to the desktop. I have seen that whenever I save a link to one of my Web sites, I see a rendering of the page content to be resized acting as an icon. But, when accessing sites such as IMDB and Facebook, they have customized icons. I am not talking about an app here. I mean accessing a Web site with iPhone Safari for example and saving the URL to the phone. There has to be some kind of recognition at the root of the Web site for that to trigger. Anyone would know what it is?

I use this in the head but can't remember where I got it.
(I had to cut a bunch of stuff out to get it to post here. )

link href='apple-touch-icon.png' rel='icon' type='image/png' 
link href='apple-touch-icon.png' rel='apple-touch-icon-precomposed' 
link href='apple-touch-icon-72x72.png' rel='apple-touch-icon-precomposed' sizes='72x72' 
link href='apple-touch-icon-114x114.png' rel='apple-touch-icon-precomposed' sizes='114x114'