I have an original iPad and will be getting a new iPad in a week. I plan to give my old iPad to my son, and I want him to be able to retain the purchases on that iPad. He has, however, his own iTunes account and will want to make purchases himself.
Is there a way of enabling his account without losing the purchases already on the iPad. And is there any risk of doing this to m new iPad and transferring and syncing it to set it up?