I think the current iPod Nano was a production experiment for the all screen technology that will appear in several future Apple products for the handtop. This entire thread, people assume the non-intuitive, then call Apple names over their own mis-conceptions.
Voice on phones sucks, is extremely expensive, and will die. Futurephones will be VoIP for voice and data only devices. The carriers know this and are clinging onto voice plans with both hands and their teeth by making them a mandatory element to get the device on a payment plan. Futureusers will simply buy the device outright, install a data plan, VoIP, and many other titles of software, and have a complete experience at lower cost.
This is what will change the current meme from postpay 2 year contracts with bundled plans (data/voice/text) to data only plans.
That will be a grand day.
Rocketman