On April 3, 1973 Martin Cooper of Motorola made the first ever call on the first ever truly portable telephone. But it wasn't until ten years later, in 1983, that Motorola sold its cellular phones ...

(CNN) — Sara Zaske's daughter, Sophia, rarely showed much interest in having her own cell phone -- that is, until they moved back to the United States from Germany. About six years ago, when Sophia ...