I received the AT&T data warning text message this morning 12-16-2011. I show 29 days 21 hours of use (new 4S unlimited started then). Phone shows; Sent 351 mb, Received 1.6 GB.

Stock phone, no jail break, normal iTunes aps. I watch no video. No tethering. No iCloud. I do read newspapers online occasionally. Location services are on.

What am I doing wrong? Any ideas?