From announcement tweet:

“Starlink now offers a global roaming option for customers traveling to locations where connectivity has been unreliable or completely unavailable”

(There’s not much other information, but it is definitely interesting to have claimed worldwide connectivity with decent bandwidth, especially if you travel to far-flung locations).

https://twitter.com/SpaceX/status/1636082103438934016
https://www.starlink.com/roam