Booking appointment via web interface pushed to Iphone

[Skel]

I have a friend who cuts hair and is attempting to expand his availability via a new web site. He asked me if there was a simple way to add the ability to have customers book appointments via the website and have it push to his calendar on his Iphone. As I'm the OS guy I haven't a clue about programming websites (if Apache goes down I'm your guy), so I bring it to the forum.

Is there a separate package he should look at getting, or is it something simple?

Thanks for any and all help.. and before it's mentioned I've already suggested he get rid of the Iphone, but he said no..

 

[KentState]

I once talked to my barber about this. He had a lot of problems with people putting in fake appointments or fishing the calendar. My current place uses http://www.demandforce.com/.