I have seen apps that can sync two IPhones together to "pass" business cards. Do you know a way to sync two IPhones Calenders over bluetooth? My wife and I are very busy and right now have to sit down together and pass back and forth all of our calender info.
Well my wife and I both use Google Calendars and thus each sync over the air with Google. We each have permissions to each others calendars. So if I want her to see something on her calendar, I just have to update her calendar via a computer (Google lets you copy from one calendar to another). It then appears on her iPhone since no sync is needed, and vise versa if she wants something on my calendar.