Make sure he's closing out his apps when he's not using them. Also, make sure the WiFi is on! I tried emailing my cousin a bunch of photos from her wedding, and hadn't realized I had the WiFi off, used ˝GB!!! In one hour!
Sorry, missed the no WiFi part Yikes! That's a lot of data!
[This message edited by cinnamongurl at 10:53 PM, November 13th (Wednesday)]