Robert Heinlen Predicted the Cell Phone, Voicemail and the iPhone in 1949
In 1949, libertarian-leaning, science fiction author Robert Heinlein compiled a list of predictions for the year 2000 that were eventually published in February of 1952, in Galaxy magazine. Prediction number 11 forecast the cell phone, voicemail, and the iPhone. I mean he really nailed it:
Your personal telephone will be small enough to carry in your handbag. Your house telephone will record messages, answer simple inquiries, and transmit vision.