In the beginning (2015), it was known simply as Project Fi.
Then late last year, Google renamed its foray into cellular service: It's now called Google Fi.
Just this week, Google announced that Google Fi was getting a few new features: Rich Communications Services for messaging and faster international speeds, which bring it closer to the offerings of providers like AT&T, Version and Sprint. (Google essentially piggybacks on the cell towers and networks of other carriers, making it a Mobile Virtual Network Operator, MVNO.)
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