AT&T, T-Mobile, and Verizon sign an "agreement in principle" to form a joint venture aiming to end wireless dead zones in the US, without giving many details (Jess Weatherbed/The Verge)

Jess Weatherbed / The Verge: AT&T, T-Mobile, and Verizon sign an “agreement in principle” to form a joint venture aiming to end wireless dead zones in the US, without giving many details — A new joint venture has been proposed to pool spectrum resources and improve satellite capacity.