Displays the contact list in your phone in reverse chronological order, so that the contact added recently comes at the top of the list*.
This is useful when you can't find the contact just added in your address book of your phone.
Tapping the contact will open the contact deatial view, allowing your to edit the contact information**.
* There might be cases that the order is changed, because of external modification to the contact list by, such as, synchronizing with gmail contact list.
** The appearance of the view depends on the phone.