Probably the target consumers. From what I saw they're targeting the lower end of smartphones with cheaper devices and people in developing countries such as most of those above are more likely to buy something like that compared to US/Canada or Western Europe, where more people afford higher end devices.
I would have liked that as well, don't know what 4ad's experience was but I almost never had any problem with the plastic money. The bills are waterproof, very hard to tear and much more resistant in my opinion.
Actually the main problem of MAC vs IP, as the response states, is the lack of hierarchy vs the presence of it.
Both IPs and MACs can be changed by the administrators and both can be set such that duplicates exist in the network. However the fact that MACs are set by manufacturer makes them impossible to route as the values are not related to the network locations but related to hardware origin.
Well, speaking/writing/understanding a language is a skill (that some people have and others need to learn) so I don't see why that would be different from knowing a programming language or algorithms.
Because the touchpad had a fairly open bootloader and we built a more versatile one for it based on the same code base (moboot). The bootloader in the OMAP chip also allows booting from usb and does not require the second stage be signed.