[db48x]

Current subscribers are only authorized to use their dish in one specific area. However, this has more to do with capacity planning than anything else. Starlink recently announced a slightly more expensive plan that allows the user to roam from area to area without contacting customer support to reauthorize them for each new location. And as someone else pointed out already, the are definitely working on providing service to customers on boats and planes and other moving vehicles. I doubt they will ever make a dish designed to be mounted on the roof of a car, but larger multi–passenger vehicles are an obvious move.

Incidentally, Starlink dishes showed up on the landing barges used by SpaceX some time ago; they use them to stream live video of the landings now.