I would really love a good wrist device, I would like a single device that shows time, monitor physical movement, (i.e Calories, distance etc.) and also be used as simple phone for emergemcy, and of course play music, I hate to carry multiple devices when jogging or going in woods
I think the iPod nano wrist bands illustrate that people are trying to multi-task their devices. We use our SmartPhones for telephoning, music, email, AND checking the time. Current technology batteries already power an ordinary watch as long as it is likely to work. Use the engineering resources developing energy harvesting technologies to solve a real problem: eliminate the need to recharge a laptop computer.
It would be large on the wrist unless it didn't do much. I think I would rather have it in my pocket. Oh, I guess I already do... If anyone can make a couple of million people buy one, it would be Apple.
So in other words, expect a wearable wrist device from Apple, much like the Up from Jawbone or the upcoming Flex from FitBit, except that Apple will redefine the category and theirs will be so much more than an activity & sleep tracker.
What, it won't be announced at CES? Of course not, since Apple doesn't go to CES. That was kind of an odd thing to be quoted on.
As for the advice about processor selection, I doubt you have to worry about Tim Cook's awareness of ARM vs. x86. Let's not forget that Tim's company already has plenty of experience with ARM cores, and it's own chip development team that regularly tapes them out with great success. Oh yeah, and a wearable device needs to consume no more than single-digit milliamps on average -- and that is the real challenge, for both the hardware engineers and the software engineers.
Cool...pls send me one ;-)...energy harvesting would be really useful, solar of course...temp difference between body and ambient is not large enough though to produce anything useful...I think you get more energy from mechanical vibrations...Kris