The following jars in lib\endorsed directory
1,010,675 xercesImpl-2.6.2.jar
  124,724 xmlParserAPIs-2.6.2.jar
1,831,743 yoko-spec-corba-1.0-incubating-M2-SNAPSHOT.jar

and the following jars in lib directory
 326,319 backport-util-concurrent-2.2.jar
 324,238 cglib-nodep-2.1_3.jar
  38,015 commons-logging-1.0.4.jar
  41,547 geronimo-common-1.2-SNAPSHOT.jar
  71,025 geronimo-deploy-jsr88-1.2-SNAPSHOT.jar
  63,991 geronimo-deploy-tool-1.2-SNAPSHOT.jar
  75,342 geronimo-deployment-1.2-SNAPSHOT.jar
  27,568 geronimo-j2ee-deployment_1.1_spec-1.0.1.jar
 356,733 geronimo-kernel-1.2-SNAPSHOT.jar
285,442 geronimo-system-1.2-SNAPSHOT.jar
 259,893 geronimo-util-1.2-SNAPSHOT.jar
358,180 log4j-1.2.13.jar
 408,051 mx4j-3.0.1.jar
  93,395 xpp3-
 261,710 xstream-1.1.3.jar

in the geronimo distribution are also in the repository.  May not be all but some of these jars could be eliminated from being placed in two locations in the distribution file and it would bring down the footprint of the distribution further.