I was just at the site and they have:
Due to heavy demand, we are unable to offer new accounts for today. If you’d like to be added to our waiting list, please enter your email address.
This is still very much a beta. Last night it had the digg affect when tons of www.digg.com visitors went there and created test pages. They must have it on a pretty small server.
This is an update to the article Google page creator review with screenshots