In other Google phone speculation, see Google's Nexus phone successors may be called Pixel and Pixel XL (The Verge); tangentially, see Motorola’s modular phone concept just got even more fun, but remains a tough sell (Recode)
"The idea of a customizable phone generated a lot of excitement, because it offered the promise of extending a product’s life with replaceable parts such as a new screen or battery. But it proved difficult to execute and move beyond prototypes. Google had planned to begin offering the phone in a test program in Puerto Rico last year, but it canceled the rollout.Alphabet Ends Effort to Create Modular Smartphone - The New York Times
The project also suffered from some organizational upheaval. It was part of Google Advanced Technology and Projects, known internally as ATAP, a group headed by Regina Dugan, the former director of the Defense Advanced Research Projects Agency. Ms. Dugan left Google to spearhead a similar group at Facebook."