Hey, So I received my cliq xt unlock code today from t-mobile and I am currently using my phone with at&t prepaid service. Anyways, I get charged $0.01 per KB used when my phone is not connected to wifi. I would like to know if there was a way where I could turn my wifi off and not get charged for the edge service? Like possibly disable my phone from using att's edge? The wifi drains my battery life. Thanks.