Instant Dial Pro allows you to select any of your 90 contacts to quickly dial the number. Just one single tap and it dials the number for you. You can store your favorite person in spot # 1. Modify an existing contact info with new one the same way as you would assign to blank entry by doing a long press. Speed dialing is very helpful while you are driving. If a picture exists for a person in the Cell Phone Contacts list, it will show the picture and name of the person. Use menu option to switch to Delete Mode which will allow you to delete Contact(s) from the application. Once finish deleting, switch back to default mode by pressing same menu option button. Sort the list using menu option Sorted List or Unsorted List and exit the application. When you start the application next time, you will see Sorted List (or Unsorted List) as what you have selected.