So far we have one app authenticating against the other. This can be very useful if you have a central user database, and don’t want to maintain users across every application you create. We used XML as the transport, so this could easily be used for applications that aren’t written in CakePHP. You can get all the details in Jesse’s article: Authenticating a CakePHP App Against a CakePHP Webservice.

We hope to extend it and allow standardized CRUD functionality across the applications. During that time, we may move the code into a datasource. But who knows.