Talked to a tech with Apple Saturday about this, but it appears that the calendar application isn't really iCal. I had an e-mail with a link to an iCal object. I figured i should be able to click the link and have the appointment added to my calendar in the iPhone. NO SUCH LUCK. It opened up safari and then gave me an error message that safari couldn't open the object. Oh well, maybe they'll fix it with a software update.