So in 2020 it will be better than GPS? Currently it sounds like it only covers China and immediate surroundings? Can't navigate merchant vessels on land last I checked. So still using other systems for that till 2020 or more satellites launched. Good to know that in 8 years we might have to have a slightly improved…

I don't like your math.

I'm on chrome and it still doesn't display, nor do the links to plain text work, on my work computer.