As mentioned in this post on the Zend Developer Zone, the Zend/IBM collaboration group have released a Web 2.0 Starter Toolkit:

It offers a great start to reducing the coding yet helps you produce cool applications using Ajax, ATOM feeds and REST Web Services. It is a great on-ramp to get you working with Zend Core and IBM DB2 Express-C and Rich Internet Applications (RIA). This toolkit will also work with Zend Core for IBM, check out the FAQ. This is an excellent use case for DB2 pureXML.

It makes things simple like making ATOM feeds from a data in a pureXML database, making web services as simple as a point and click operation and check out the usage of your database via an Ajaxed interface.

Check out the project's website for more information. Currently, the project requires Windows (either XP or Server 2003).