I'm willing to pay. I love this app and have used it for over a year with my MobileMe account with a 3gs.
I want to add 3 other iPhone3gs' to the "Find my iPhone" service but MobileMe is closed to new accounts and my account is individual and its too late to convert it to a family plan.
If the App is free for iPhone 4 users, how does that work? It must be something other than MobileMe. So what is it?
The AT&T family map is rediculous - it costs $9 a month and doesn't work most of the time. When it does work it is accurate to about 1800ft.