Already ten years ago I was astounded by the number of phone stores in town. Downtown here at that point no longer had a single video store, but maybe a dozen phone stores.
And it has only escalated. I don't think anybody but Ray Bradbury had predicted a world were everybody permanently has a phone/media-device glued to them. It's odd.
Neeraj pointed to:
The Joymaker is a fictional device invented by Frederik Pohl for the novel The Age of the Pussyfoot, first published in 1965. It bears a remarkable resemblance to devices in common use in the years following the start of the 21st century.
The remote-access computer transponder called the "joymaker" is your most valuable single possession in your new life. If you can imagine a combination of telephone, credit card, alarm clock, pocket bar, reference library, and full-time secretary, you will have sketched some of the functions provided by your joymaker. (from the novel.)
OK, so my iPhone can't make drinks yet, and it's a bit dumb for a secretary. But then it costs far, far less than a car, remarkable for something which for many easily could pass for "the most valuable single possession"!