Just received a WoPad 7001. I am wondering if there is a way to turn off the cell phone connection and just use the WIFI. When I go into status and view what is using the battery it shows the cell phone connection using 71% of the battery power. If I try to change it to airplane mode none of the options are available. I plan to connect via WIFI only anyway and thought if I could turn this feature off it might give me more longer battery life.