"1. A requirement seems to be the ability to make and receive socket connections. How would you address the typically restrictive home firewalls/NATs that most people are living with?"
IPv6 is already being deployed from top tier mobile carriers and that allows globally rout-able addresses even behind NATs.
"That doesn't inspire much confidence in the idea as a proof of concept."
This technology is a little ahead of its time, but not by much. And by the time an end-user ready core is developed, we'll we be there.
"Are you sure you're able to make that claim?"
yes, the technical hurdles are only time consuming, not insurmountable.
IPv6 is already being deployed from top tier mobile carriers and that allows globally rout-able addresses even behind NATs.
"That doesn't inspire much confidence in the idea as a proof of concept."
This technology is a little ahead of its time, but not by much. And by the time an end-user ready core is developed, we'll we be there.
"Are you sure you're able to make that claim?"
yes, the technical hurdles are only time consuming, not insurmountable.