BBC News writes:
So the wheel is best for lists, the keypad is better for numbers, and other controls are better for other functions. How do you fit that all on a phone?
The answer may be simpler than you think. The phones of the future will perhaps sport the user interface some believe is the best set of controls ever designed – a touch sensitive LCD screen where the buttons should be.
This virtual keypad will mean that whatever mode the phone is in, you get a different set of controls.
“You don’t always need or want 12 keys, you might want a scroller, or a wheel, or a joystick, or a navigator, or one key, or three keys,” said Nina Warburton of Alloy Product Design.