My view on this 'announcement' is -- Possible? Yes. Economical at scale? Likely not.
Even Starlink V1 has essentially become 'Pay us 2500 USD up front and 500 a month to get access now'. I question the viability of adding cellphone levels of users to a network like this, from not only an economic standpoint, but a physics/bandwidth standpoint on the EM spectrum.
Would love to be proven wrong on this.