On 2) this happens already in some places, Facebook.0 is that and in some countries it is free for mobile users on particular carriers.

There has been significant fights against it in other countries, I believe India specifically. The reasons are clear as to why if you think about it a bit.

Putting aside how you feel about Facebook, how does the next Facebook happen in these countries? How are you meant to compete against free if you are trying to bring up a new service? Even if your service is better in every way you just don't stand a chance.

If you believe value is created by innovation, then you need to enforce that the opportunity is the same for everyone, otherwise you are creating an environment where new things just can't bubble up.

This doesn't even get into the side of things that the "internet" then becomes what Facebook wants it to..