Verizon Wireless has confirmed that its LTE phones will not “be compatible on other LTE networks in the U.S” due to frequency differences, according to a PCMag report. The article notes that although the new 4G LTE system being implemented by Verizon, MetroPCS and AT&T uses a SIM card system similar to GSM, carriers such as Verizon may be building phones to run only on their own wireless frequencies, preventing their devices from being…