The latest update to the iPhone and iPod Touch devices allows you to add links to websites directly to the main screen. Well, in true Apple fashion they want you to make a new icon specifically for these devices --- favicon will not do.
Thanks to Andy with CEHS, he pointed me to some resources and info on the new icons. I've made a generic icon for use on UNL websites which anyone can use if they have a reason to do so.
http://www.unl.edu/ucomm/templatedepend ... h-icon.png
If anyone has one of these devices, http://peoplefinder.unl.edu/ is one specific app which has customizations to make it work better with mobile devices, and a custom apple-touch-icon.png graphic.
Right now I've only added it to the homepage, and peoplefinder -- and I don't think it's necessary to add a device specific favicon-like tag to the template source code. But if anyone has a need for this, it's available.