You can confirm it's non-commercial and they let you keep it for free... for now.
They made the change fairly late in the process, and supposedly there was a way to undo the paid migrations by opening a support ticket, but I saw lots of posts about people being unable to migrate back and get refunded.
Thanks; great info! However, I think it's long past due for me to move the keys to my kingdom onto a paid service. However, maybe I'll leave one of my vanity domains on Google services. (Roughly 70 people worldwide share my surname, so it was easy to pick up a few vanity domains.)
They made the change fairly late in the process, and supposedly there was a way to undo the paid migrations by opening a support ticket, but I saw lots of posts about people being unable to migrate back and get refunded.