They've done something like it in poorer countries, I believe, but it's more about subsidizing the connection.
There's certainly marketshare they could work with in USA and Europe. $70 billion is 70 million phones.
No, they've done this in the US. https://en.wikipedia.org/wiki/HTC_First. https://www.cnet.com/pictures/a-look-at-the-htc-first-aka-th...
Yes, Internet.org in 2015, (later rebranded as Free Basics) according to an AI