I have to say, I do love the Flipboard iPad App and personally I haven’t had any issues with it. However a friend of mine received the email below from them:

Hi there,

We just sent you an email telling you that we were ready for you to set
up your Facebook and Twitter accounts. We are sorry to say that our
email system sent the wrong email. We were actually trying to send you
an email confirming your place in line for you to setup your Facebook
and Twitter sections.

You will receive another email when your reservation is ready. We are
working around the clock to get you your invite and will send you your
official invite soon.

Thanks again for your patience and support.

- The Flipboard Team