I've been watching my younger brother play with his iPod for the first
time and it's got me thinking about Apple's move from a mechanical
scroll wheel to a solid-state touch wheel on the 2nd generation iPod,
and wondering whether they needed to start with the mechanical scroll
wheel to "teach" people the concept of the circular movement? Or was it
more likely a matter of technology/price not being where they needed to
be to go with a solid-state touch wheel from the beginning?
Anyone know of any links to analysis or interviews that speak to that
point? Or examples of similar step-ups for new interactions?