From the links the App Engine team provided, it looks like this is only available for customers of Google App Engine for Business ($8/user/month). http://googl

From the links the App Engine team provided, it looks like this is only available for customers of Google App Engine for Business ($8/user/month). http://googlecode.blogspot.com/2010/05/announcing-google-app-engine-for.html http://googlecode.blogspot.com/2010/05/announcing-google-app... I wonder how they're doing this and how their offering will compare to Big Table in terms of ACID and scalability.