I think the "we aim" here refers to 3G/4G. The phone is going to have a baseband module, so yes, it will be able to do GSM phone calls & SMS like any old phone

I think the "we aim" here refers to 3G/4G. The phone is going to have a baseband module, so yes, it will be able to do GSM phone calls & SMS like any old phone. I imagine that adding 3G/4G packet data in a FOSS manner may be harder however.