I know there are several Skullbrain iPhone users.... to make a custom icon for your website that will show up in the Springboard when a user makes a "webclip", using their iPhone or iPod Touch, the dirt simple way is: • Create a 57x57 PNG. • Name it "apple-touch-icon.png" • Throw it in the root folder of your website. (Not the root of your server, the root of your web documents.)
I don't have an iPhone yet (ATT-resistant), but I think aside from Josh's artwork, another good icon would be the plain back/orange S7 done in the Giants font, like some of the tees/hoodies have.