Though most major U.S. wireless carriers today tout the ubiquity of their third-generation, or 3G, wireless networks, they are simultaneously planning for the future, pushing the development of fourth-generation networks that they hope we'll all be using in a matter of years.
Two of the best-known 4G technologies now on the horizon are WiMax, or Worldwide Interoperability for Microwave Access; and LTE, or Long Term Evolution. However, these two different technologies will likely take different paths in their development and eventually be used for different applications.
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