I'm pretty convinced that he learned to drive but never felt a car was necessary when he can teleport or take public transit.

*nodnod* I think he walks a lot, too.

A teleporter with an active cell phone would look very strange in the carrier's records.

That's true, though I think it's something a TV show could easily handwave (and/or he could easily leave his phone in his office when on official Envoy duty, to avoid untimely ringtones ;-).

Besides, if SW had a cell phone, we wouldn't have the great video call about bears.

Haha, so true, and completely justifies the decision!!! :D :D :D

I think you're right that it makes him more mysterious, too. There's so little mystery left in the world today.