[Millbrook]

I see that your most recent message was posted just a couple of hours after the first. I would guess that your Kindle will be fine if you let it dry out overnight -- there's probably still some moisture under the keys.

Edit -- oops, it's been a few days that you've had this problem, my bad. There must be something under the keys, but if drying out the Kindle didn't solve it, you may be stuck, sorry.