Project Fi by Google
For those who don't want to read the FAQ or find the video incredibly unhelpful [1]:<p>a. It only supports the Nexus 6 out of the gate.<p>b. It automatically switches you to the "fastest" network available. Partners out of the gate are Sprint and T-mobile. Sounds like it prefers Wifi, then 4G LTE, and then degrades down to 3G or 2G.<p>c. Pricing is $20 for unlimited talk (domestic) and text (domestic and international) and wi-fi tethering. Data is $10 per Gig. (Plus taxes, etc.) No support for unlimited data. they also refund you all the unlimited data at the end of the month.<p>d. No annual contract required.<p>e. Supports calls over wi-fi.<p>Coverage map here: <a href="https://fi.google.com/coverage" rel="nofollow">https://fi.google.com/coverage</a><p>[1] Not even sure why they made a video, it doesn't explain a thing...<p>Edit: clarified domestic talk pricing, and refunding data.