Been looking around for a tweak from Cydia for SBsettings that would block just the cellular signal portion of the phone but not the data. At work, there are deadzones in the building where I can get data but not regular cellular signals, and since it's at "No Signal" or "Searching....", it's zapping my battery life by an insane amount. I've installed the All Sources in Cydia to hopefully find something of the sort but no dice. Any suggestions from the community?