[MojoRisen]

The only time(s) that my data becomes active is using the browser, if I'm updating the weather, or using WiFi router. Outside of that, I don't have this issue. I would suggest checking any apps running. This may or may not have an affect, but you can check to see if you have "Receive incoming beams" checked (Start - Settings - Connections - Beams). This could cause some activity, not to mention decrease battery life.