http://www.redbooks.ibm.com/redbooks/SG245485.html

Although this exaplains the stored procedure builder of AS400, it is not clear what the future packaging of IBM is going to be and how this piece is going to be packaged into UDB releases.

Most likely this will come with the UDB client.

This tool is almost useless unless you have the underlying connectivity products like DB2Connect. And you have to pay licensing fees for this conenience.