The popular iPod Touch media player has been revamped at three price points - $229, $299, and $399 - all costing more than the iPhone, which does everything the Touch can plus make phone calls.
Articles have stated that Apple is paid for each activation by AT&T "up to $325 per phone"[1] or "$18/month ($432 over 2 years)"[2]
[1] http://www.zdnet.com/blog/mobile-gadgeteer/at-t-may-pay-appl...