it can...
we are currently at version 0.2.1.
you can grab it from gems...
gem install dcov
or from its rubyforge page or check it out directly...
svn co svn://rubyforge.org/var/svn/dcov
we'll have a trac or something up soon for bug reporting and such.
dcov is a google summer of code project, being developed by jeremy mcanally and mentored by chad fowler.