Nowadays I am thinking about a mobile application (specially for iPhone) and trying to build it for personal use and of course will allow to others too. I want to develop such application, suppose I have iPhone device.
My iPhone get missed call in the absence of me and in that that case suppose I missed some urgent call and I really did not want to miss them. So that my device should have automatically sent messages to them all that I could not receive those calls in due to my absence and message would be like "I am unavailable right now, please call me back or wait for my call".
So all that was the idea of mine I want to develop such mobile application, I would keep each think in my mind like don't send unnecessary reply even not needed. I'll look to the UI part also. That's why I am studying AddressBook
frame and all related tutorial, and gathering all required thing to go ahead. But before going ahead on coding part.