http://googlecode.blogspot.com/2010/05/announcing-google-app-engine-for.html http://googlecode.blogspot.com/2010/05/announcing-google-app... See under the sect

http://googlecode.blogspot.com/2010/05/announcing-google-app-engine-for.html http://googlecode.blogspot.com/2010/05/announcing-google-app... See under the section "Enterprise Features". Note that this is a page about GAE for business, so I wouldn't be surprised if SQL databases require a billable account similar to the Blobstore - don't think anything has been explicitly stated one way or another as yet though.