"With Project Fi, we deliver fast wireless service with the flexibility to use it where you want (even internationally) and a monthly bill that’s simple and easy to understand," wrote Simon Arscott, Fi's product manager, in a blog post. "Today, we’re excited to be exiting our invitation-only mode and opening up Project Fi so that people across the U.S. can now sign up for service without having to wait in-line for an invite."
For the next month, Google is discounting the Nexus 5X down to $199 as an inexpensive way to get started with Fi, which only works with Nexus smartphones. Project Fi connects to the cellular networks of both T-Mobile and Sprint, switching between the two to offer customers the best possible coverage. Google is also pushing Wi-Fi and public hotspots in a big way with Fi; over 50 percent of current customers connect to public hotspots using Fi's "Wi-Fi Assistant" on a weekly basis. As for cellular data, Google's Project Fi subscribers are impressively lean in their usage, averaging 1.6GB of data each month.
Yahoo Tech