So suddenly Blogger tells me the sign-on for my Blogger account is being switched to my gmail sign-on. It wasn't presented as a choice, it looked like it was mandatory ("I don't want to switch right now" was buried at the bottom of the page). So I shrugged and told Blogger to do it. Then, later, I got the following email:
Thanks for your interest in the new Blogger in beta. An error has occurred that has prevented us from switching your account at this time. Our engineers have been notified of the issue, and your blogs and Blogger account should not be affected.
Please try switching again later via the promo in your dashboard, and please remember your Google Account information as you will need it to switch to the new version of Blogger. For now, you can still log in to Blogger using your original Blogger account.
Thanks for your patience,
The Blogger team
I think it's reprehensible to shove someone into a buggy beta service without making it a clear choice. So much so that I'm glad Google is experiencing these problems. They need to eat some humble pie.