Four days after AT&T started slapping its ‘5G E’ icon on iPhones and iPads running the latest iOS beta last month, Sprint filed a lawsuit to bar AT&T from being able to use the marketing tactic for what is really advanced 4G LTE service that’s been around for years. Now, Sprint has taken the battle to the next level by taking out a full-page ad in The New York Times blasting its competitor for what it calls a “false and deceptive marketing campaign.”
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