Hmm. I own xml.com. I have not to date actually put it to use, but
I plan to. Nonetheless, as its owner, I am happy to offer it for
this purpose, and com.xml.sax has a nice ring.
If anyone is feeling paranoid, I would be happy to sign an undertaking
(a) never to interfere with or charge for this use of the xml.com
namespace, and
(b) should I sell xml.com sometime, to require the buyer to sign up
to conditions (a) and (b).
-Tim