I can still remember my brother bought his first mobile-/car phone...
Motorola was the brand to buy. He bought a double car kit, one for his private car and one for his truck. He rode around Europe as a trucky. A big car kit with a big horn with the buttons on the out-side and a big box with electronics. As an extra he got a mobile phone; pull-out antenna and fold-open the lower half. About 1 1/2 inch thick and heavy as a brick... Cost a furtune!
That was 1990...
If you look at the mobile phones of today... It's more like a pocket pc; internet, agenda, camera, e-mail, navigation and so on. Thinner and thinner they get, screens getting bigger and bigger.
I love the Samsung Galaxy design with the rounded corners and the smooth looks. It's almost a piece of art...
(Did you ever see that crash test with and iPhone and a Galaxy... Google it!)