Starting today, Apple is offering a SIM-free version of the iPhone X from its online store in the United States, allowing customers to buy an unlocked iPhone without choosing a carrier. SIM-free versions of the iPhone X in all capacities list the same ~one week delivery estimate available for other iPhone X devices. SIM-free iPhone X models ordered today will arrive on December 12. SIM-free iPhone X models will work with any carrier and have full support for both CDMA and GSM networks, much like the Sprint and Verizon versions of the new smartphone. iPhone X models from AT&T and T-Mobile do not support CDMA networks and are not compatible with Sprint or Verizon. Since iPhone X pre-orders kicked off on October 27, Apple has only allowed customers to buy an iPhone X with an AT&T, Sprint, T-Mobile, or Verizon SIM, though models purchased in full are listed as unlocked. At launch, Apple was requiring carrier pre-activation to make an iPhone X purchase, but that req...