Re: Self supply
Why would that matter? obviously Samsung makes a lot of stuff, that's their business making things. They seriously suck at producing anything new and innovative.
Galaxy Gear is a perfect example of that. They produced something fairly original (Pebble is a much more simple and different design) and the reviews are all pretty much the same, they suck at industrial design and they suck at producing software.
There's only one reason to own your own production facilities, to eliminate the profit margin on production. But if you do own your own production facility you have to ensure that it remains competitive. It's much easier to just put tenders out to the market and get a good price.