Mobile phones have only been around in the last 25 years but a lot has changed.
The History of Mobile Phones
Smartphone history: a complete timeline
Who discovered the cell phone? - Quora
Smartphone, Camera, Battery Life & Storage
Nokia: A long and innovative history - CNET
History of Mobile Phones: From Evolution to a Revolution
History of mobile phones What was the first mobile phone?
History of my mobile phones
Smartphone history: a complete timeline
A Brief History of Mobile Phones and Communication
The Complete History of Cell Phones - Red Pocket Mobile
Smartphone History - The First Smartphone
Smartphone History: The Timeline of a Modern Marvel
The Evolution of Mobile Phones: A Look Back in Time, Froth Apps - Adelaide's Leader in Mobile & Web Based Apps, App Development Company