Yes, you are reading it right. It is true. It’s just a matter of one click to promote your staging website to be the production site. Gone are those hassles you were facing with publishing a new deployment to the live website, and some unbaked pages/assemblies, needless to say much pain, downtime, and probability of errors.
Windows Azure Web Sites is here to ease a lot of tasks you typically do in your websites. Now, create a new staging environment for your existing website in a matter of few seconds, and start testing the new bits, and push a button to make it live.
Read more about this feature in this blog post of ScottGu.