Project Fi - From Google - The first step towards Worldwide Roaming?
 

https://fi.google.com/about/

Right now will only be available for the Nexus 6 phone. Maybe just for U.S. customers, but hard to tell. About $30/mo covers use in 120 countries. Haven't read all the details. Look for independant news postings on the net as well as going to Google site, above.

Perhaps some of the last steps?

Carriers will either get on the train or miss it completely?

I know it seems early or premature and trainwrecks litter the trackside, but the 'Winners' in the last few decades have started early and become too big to lose.


Examples of winners: Ebay, Amazon, PayPal, Google, Microsoft, Apple----my mind now goes blank.

Losers? All the search engines you used to use. PanAm, Eastern Airlines.
The world is fickle and things change. Internet enablers are the current big thing. Is the internet the last big thing?