Sorry to learn you're in the same boat DG.
My email to Amazon.
I just tried to purchase a new book from the Kindle Store and to my surprise, I was unable to because my Kindle 1, Kindle 2 and iPod Touch have been de-registered from my account... and it was not done by me.
Before I re-registger I would like you to investigate how and why this happened. The Kindles and iPod Touch are still in my possession, so it wasn't a thief. I live alone, so it wasn't someone in my household. I believe the error is on the Amazon side.
Please contact me and let me know what happened.