The 2nd annual Zend/PHP Conference is currently taking place in San Jose. Yesterday saw the official announcement of support for IDS and DB2 V9 in the latest Zend Core for IBM. Other new features include pureXMLTM support and an optional connection pooling feature.
The Zend announcement can be found here: Zend and IBM Combine Performance, Scalability and Rich Content Support in New Version of Zend Core for IBM. Or view the eWeek story: Zend Moves to Boost PHP Usage.
Zend Core for IBM adds support for Informix Dynamic Server