That was the same for mobile internet connections on a phone before Apple suddenly made that desirable to the mainstream. Also I remember ungodly terrible experiences getting data from a PC to a phone and vice versa with Samsung's software in an era before smartphones. Both things are nowadays most basic features. So, having at least kind of functioning SIM slots in notebooks is already a promising PoC.
That was the same for mobile internet connections on a phone before Apple suddenly made that desirable to the mainstream. Also I remember ungodly terrible experiences getting data from a PC to a phone and vice versa with Samsung's software in an era before smartphones. Both things are nowadays most basic features. So, having at least kind of functioning SIM slots in notebooks is already a promising PoC.