TheInformation.com and Engadget are raising the rumor that Google approached Verizon January, 2014 about carrying Google branded mobile phone service over it's network.
Neither company responded to questions, but if such a partnership didn't occur, Google could certainly still find a way. The'll be stringing as many as 34 cities up with Gigabit Fiber, so they could hang radios on the poles or install femtocells in customer's homes instead of sharing cell towers with the major telcos.
If the mind bogglingly low price of Internet service is any measure, Google's mobile phone service could be so cheap they won't bother to meter it! Buy a Google phone, and make unlimited calls for 7 years?