It's a cool concept/mockup but I still hope that Apple does keep Nano as it is. Otherwise there is (in my opinion) to call it as Nano anymore, since it would be too big to fit in term nano. Great work anyways.
Well if that would be the case I think it would have more capacity (or as noticed on iPhone and on iPod Touch, weaker capacity) e.g. to 320 Gb and 640 Gb. Nah, I think that it would be, again, first 4/8 Gb plus 16/32 Gb and later on (next year) 64 Gb and 128 Gb versions.
If it will be iPod Nano 4G I sure hope that it at least has decent capacity! That screen is too big for Nano.
I agree too, Apple will increase the capacity of their products, a nano with 16GB would be great and a 64GB iPod touch too but I think the iPod Classic won't have more capacity, it has enough, maybe Apple will replace the Hard Disk with a flash memory, that would be great