In China as in many countries the regions are divided up into industries, for instance in China the Shenzhen region is a local centre for gadget manufacturing, not all legal as some clones often creep into the mix.
Talking of which, the tech site shanzai.com took a little look at the ePaper Fair and as predicted there were a few clones on offer, some were not that brilliant either.
This is the TESO iPad look a like, but has more ports and as such is on the thick side so we must assume that it is heavy too.
