So I do think this is a cool idea, though I have found that my phone usually gorges on battery power when it isn't in range of a tower (I'd love to hear the exa

So I do think this is a cool idea, though I have found that my phone usually gorges on battery power when it isn't in range of a tower (I'd love to hear the exact reason it would if anyone knows). An "airplane mode" pocket sounds handy and interesting, but I'd hate for it to drain my battery while the device is desperately trying to phone home.