Running multiple testsuites at the same time using testrunner

Hi - Very new to SoapUI.  I have an automated test framework that I want to have run many soapui projects that are all in one directory and produce just 1 junit style report that has them all included in it.  I have seen other posts that hint at ways to do this, but nothing that really answers my question.

Specifically, it would be nice if I could do this from the linux command line:

/opt/soapui-pro-3.0.1/bin/testrunner.sh -r -a -j -f /home/test/functional/responses/ -t /opt/soapui-pro-3.0.1/soapui-settings.xml -h 192.168.1.201 /home/test/scripts/soapui/*.xml

Note that my wish is that  *.xml would pick up all the projects in the directory and produce a single junit report for all the projects there.

Is such possible?  Is there a better way?  I have read that ant can do such but have no experience with it and would like to keep my test environment simple with just soapui-pro if possible.

Thanks for any input / guidance...