I received my unit last week.
Based on the documentation in the order form, you cannot move your terminal from the address you register with Starlink.

Some internet sleuthing seems to be saying that for now at least, your terminal is going to be locked to specific region of satellites. So if you move too far, while your terminal may be able to see other Starlink satellites in the constellation, those satellites won't allow the connection (or maybe the terminal won't), but it is software locked at some level.
Some Reddit threads show people losing connectivity by going 30 miles away from their origin. Another report shows 100miles away, but it seems no one has been able to go "anywhere" they want.

It sounds like under the current terms, if you were to move and take your Starlink with you, you can reach out to support and if they have capacity and availability at your new address, they have the ability to re provision. But for someone mobile at the moment, its not an option.

But the general belief is that once the full network is up and running, they will probably allow roaming to some extent.

While there very well may be missing parts, as someone who had their google account shut down 2 weeks ago, my experience was very similar.
I received a e-mail to my recovery e-mail associated with the google account.

I submitted a request for review asking for clarification and gave a brief overview of what the account was used for indicating that I was unaware of it being associated with multiple account and that it was created by me, a human. I received the following reply.

And now I can no longer use that account. I was able to get data out using the "download my data button". there was no interface other than giving an e-mail address to send to notify when the export was complete, but the zip file was a takeout file using their standard format, so in theory, the person in the article should have been able to get all of the google associated data. Still screwed by where else that account may be used and what those sites recovery options are, but the Google Data should have been recoverable.

This isn't so useful as far as a phone goes, but for an MiFi device... but I recently purchased a Karma WiFi Hotspot. https://yourkarma.com/invite/b... (obligatory share link) or just https://yourkarma.com/ They work as a pay as you go vs a subscription basis. You buy 10GB of data, that data is good until you use it up. The data is still a little pricey ($100 for 10GB, $60 for 5GB) but they run promo deals from time to time. I'm a fan just because I hated having to spend $50/month on a data plan that I would often not use if I was out of the country for a chunk of time.

Part of Karma's thing is that the SSID will always be an open network with the name Karma in it (you can pick a couple options). If you are in a public place, others can log into your Karma and purchase internet time off of it. Any guest usage does not count against yours, and you get a data bonus for sharing your hotspot.
They say your connection is secured from any other device. I'm still not sure how they accomplish this.