Since Blogger seems to be misbehaving, I've gotten a couple of emails from people who cannot leave a comment on the give-away post. In the nonce, the give-away is open for comment until Saturday, with the winner being drawn by some non-scientific method on Sunday. So let's hope they can fix whatever is wrong soon!
p.s. If you still have trouble leaving a comment, send me an email at swomersley at gmail dot com.