However, as The Verge points out, there are some restrictions in the FCC filing. SpaceX cannot yet increase the radio emission power of its Starlink satellites. Companies such as

The T-Mobile license is the first collaboration between a satellite operator and wireless carrier to be approved by the FCC to provide supplemental cell coverage from space. “The Commission recognized that satellite-to-device connectivity can support critical public interest benefits,

Using satellites as a backup for cell service, and providing coverage in areas where traditional service doesn't cover, just took a big step forward.