PoetDoc
iPF Noob
I have noticed on my iPhone that if I leave 3G and data 'on' my phone grabs A LOT of data overnight, like at midnight or 2 am (when I am not using the phone). I suggest you go into your AT&T or Verizon bill online and look at the times when all the data was downloaded. I solved the problem by turning off 3G and data most of the time, except when I really need them. Now my data usage is more reasonable and I never go over. Also I am pretty good about closing apps at the end of the day. I think there is a class action suit against AT&T for over charging people for data. Check it out. http://thedroidguy.com/2011/05/class-action-lawsuit-att-sued-for-overcharging-iphone-customers/