The latest 3.0.1 versions of the JMS Adapter for .NET and for BizTalk Server now support Oracle AQ. You can download them here, or take a look at the documentation for using the JNBridge JMS Adapter for BizTalk Server (pdf) or for .NET (pdf) with Oracle AQ.
Past versions of the adapters didn’t support Oracle AQ, as they relied on the standard JMS 1.1 specification, including JNDI. Instead of JNDI, Oracle AQ uses its own proprietary API. The adapters now include a JNDI scaffold, which is basically and implementation of JNDI on top of the proprietary Oracle AQ JMS calls. Also included are guidelines for configuring WebLogic.
This effort grew out of some specific requests to support the Oracle Retail Integration Bus (RIB) with .NET and BizTalk Server. Try it out for yourself, and let us know what you think!