I have one. I'm honestly not sure whether my registration will be refunded or not--the email I got from my registrar said that this is expected to happen but the details are yet to be worked out, while at the same time Verisign's own public statements don't even touch on the point that there will be services paid for and unrendered.

My guess is it would be hard for me to substantiate damages in excess of the actual registration fees, which in my case will amount to some $93 or so once prorated. It's sort of the perfect number: just high enough to be insulting, just low enough not to be worth chasing adversarially.