From the google groups list [1] "I would also like to point out that we have not disabled custom domains for any existing apps, we have merely prevented new ap

From the google groups list [1] "I would also like to point out that we have not disabled custom domains for any existing apps, we have merely prevented new apps on the free plan from mapping a custom domain. I understand that this is an inconvenience for some, but it was a necessary measure that was needed in order to implement a vital architectural change that allows us to provide a BETTER service for our existing customers." So if you'd made use of the feature, you're ok, but if you're an existing free user who hasn't mapped a domain then you can't enable the domain feature. However they didn't tell their existing free users of this change. Personally, as a free user (with nothing live) I was always surprised at what they did offer without charge, but it comes back to one simple motto "Don't be a free user". 1 - https://groups.google.com/forum/#!topic/appfog-users/ryJqaUb01Pk https://groups.google.com/forum/#!topic/appfog-users/ryJqaUb...