On this page <http://apr.apache.org/projects.html#open_source>
there's no mention of Subversion as an open source project using APR.
(There are not actually any users listed of any type.) I think
subversion (<http://subversion.tigris.org>) should definitely be
listed now that it has reached Alpha and is quite dependant on APR.
Probably Apache httpd-2.0 should be listed too. :-)
(<http://apr.apache.org/> says "If you are using APR, and would like
your project recognized, please send e-mail to the developer's
mailing list.")
-David Mankin