My husband's phone bill shows data usage of small amounts at 2 to 3 minute intervals at various times of the day. He says he knows nothing about instant messaging and only uses the Google maps once in awhile. Is there any way this data usage is some kind of update taking place unknown to him or is it instant messaging and he is not telling the truth? I want to make sure before I make any accusations. He has been caught text messaging other women before and knows that I can catch that. His phone is a Blackberry 8330. Thank you for your help.