Chris Nicoll, an analyst at ACG Research in Herndon, Va. said 4G has become a marketing term for the next generation of technology beyond 3G. Right now, all the major cell phone companies are in the process of building 4G networks. 4G LTE technology "delivers speeds that are as much as 10 times faster than 3G. That means that you can upload, download and stream video, or access documents and websites much faster on smartphones and tablets. "We're talking about faster speeds and the latest technology," said Holly Hollingsworth, an AT&T spokeswoman. And right now, 4G LTE is the fastest technology available. It stands for "fourth generation," a term used by carriers to describe a major leap in speed, capacity and power over other networks. It takes about three years to complete building an entire nationwide network. What does 4G mean.

Source: Plain Dealer