It's supposed to be a constellation of ~700 satellites, that definitely suggests low orbit. (Rationale: With high orbits like GEO, a single satellite covers ha

It's supposed to be a constellation of ~700 satellites, that definitely suggests low orbit. (Rationale: With high orbits like GEO, a single satellite covers half the planet, so there's no obvious reason to have hundreds of them. But LEO is much nicer for many reasons (latency, launch cost). If you could cover the whole planet from LEO, that'd be the logical choice; and planning ~700 satellites at once suggests that's the aim).