At the moment this option is not available due to facebook restrictions.
We are not able to tell until when this will be unavailable. Sorry.

Yes! Go to our website :

Click on the "Get Started" button or the "Our products" button on the top menu on our website, scroll down and select "Fan Page Social Book" on the right column. Accept the Facebook permission if it's not already done. You will be able to select your page as the subject of the book.

Be aware that you have to be logged in with your personal account.