Dual sim adapter for mobile phones http://www.magic-sim.com/ You can have a separate dedicated data account to your call account, or services with two different carriers for approx $37. Or have two sims active at the same time with this $84 device: http://www.magic-sim.com/product/id/44/GoodTalk_DUAL_SIM_DEVICE_-_2_SIMS_ACTIVE_AT_THE_SAME_TIME!.html Add one of these to this: http://www.theultralighthiker.com/cheapest-mobile-phone-service/
