i've set up two iPhone 3Gs - one was an upgrade from 2g and all when I activated it it said to enter my password and what it (a little pop up window came up) the second one was an upgrade from a non-iphone and I got that screen when the phone was first activated. So it looks to me based on my most limited experience that it is only in those instances that is shows up - but this is based on little if nothing...so yeah that did answer anything, sorry