DynaTAC. The world's first commercial portable cellular phone, the Motorola DynaTAC phone, receives approval from the U.S. Federal Communications Commission. The 28-ounce handheld phone becomes available to consumers in 1984. Also that year, after many years of development, the company's first DynaTAC cellular system begins commercial operation. Over 15 years, Motorola has devoted $100 million to the development of its cellular programKaszczorek