This is simple. If you would like to change your iPhone identity name from ‘iPhone’ to say ‘Joe Jr iPhone’, you got to do this:
Open iTunes. Click on the ‘iPhone tab’ in the Navigation Menu on the leftside wait about a second then click again and it should open up the Field for editing. Rename that field and your iPhone’s identity would change.



To change your iPhone name in iTunes you need to use a computer!!
Vincent, you should try downloading the ICAMCORDER app