For the benefit of those using JPOX in the development of the JDO 2 TCK/API, we just released JPOX 1.1.0-beta-3 - the first release that requires the Apache JDO2 API. It's available on SourceForge, and has been requested to be put on IBiblio. Go to the JPOX site for full details of the changes in this version.
One thing that you may find beneficial when running the TCK is to enable use of connection pooling via the JPOX plugin for Apache DBCP, or C3P0. Speed-ups of 30-40% are normal. See here for how to enable it http://www.jpox.org/docs/1_1/rdbms_connection_pooling.html -- Andy Java Persistent Objects JDO - JPOX
