There are a number of XML editors available.  While not specific to Ant, they will provide you a tool to assist in creating a valid XML document.  Have a look at http://www.xml.com http://www.xml.org or you favorite XML site.
 
Todd
-----Original Message-----
From: Michael Saunders [mailto:michael@amtec.com]
Sent: Tuesday, April 25, 2000 3:51 PM
To: ant-dev@jakarta.apache.org
Subject: GUI Front End?

To all:

Is there a GUI tool in the works that would assist in assembling and maintaining the XML build files for Ant projects?

Thanks,
Michael