I just went over my 150 MB/month allowance on Data Usage. I use the WIFI as much as possible, so I looked at my bill on line. It is showing data usage at 3 and 4 o'clock in the morning, when I am in bed!!! Does anyone know what I could be running on my phone that would constantly be using MB? It is occurring 7-8 times per night and it runs from about .015MB to .50MB.