Great hack! Is it possible to use a Bluetooth headset?

That modem or a few others can be used with some of the small SBCs, which have a smartphone size or even a smaller size.

If you connect then to some battery pack with a USB charger, you have a mobile solution, though one more cumbersome than a real smartphone.

Yes, whoever can shrink this down to the size of something that would fit in your pocket would make a killing. Imagine not only being able to make phone calls, but use productivity software and even browse the internet.

it's incredibly repairable. I still use the t480 for modern workloads because I've been able to switch out the battery, the fan, the keyboard with fairly abundant aftermarket parts.