Ok the Macbook Wheel is a nice joke but Nokia had launched not one but two mobile phones with few buttons and a wheel as the only input interface.
Here is the old Nokia 7280:

And its successor the Nokia 7380:
Reviews:
Remember the difficult task of dialing numbers? Well, typing an SMS on
the 7280 is the ultimate nightmare. Scrolling through small letters
laid out in the horizontal character bar is tiring and dreary. I took
almost 5 minutes just to compose a 5-word SMS, a process that requires
about 10 seconds on a phone with a normal keypad.