OCUnitLogger is a drop in set of classes to allow you to convert the OCUnit output into something your builder server can consume based on JUnit output.
Copy OCUnitToJUnitLogger.m, GDataXMLNode.h and GDataXMLNode.m from the Logger directory to your UnitTest project. GDataXMLNode.h and GDataXMLNode.m come from the Google Objective C client. The output will be put at build\ocunit.xml. GDataXMLNode is used so it can be put in iOS projects.
A Mac sample that is based on the bowling game tests.