Sourceforge may take a day or two to do this, but once it's moved, you can access the contrib tree via CVS as follows:
cd moodle cvs -z3 -d:pserver:anonymous@cvs.moodle.sourceforge.net:/cvsroot/moodle co contrib
Note that you can already install the "mysql" module the same way:
cd moodle/admin cvs -z3 -d:pserver:anonymous@cvs.moodle.sourceforge.net:/cvsroot/moodle co mysql
as well as the Windows cron package:
cd moodle cvs -z3 -d:pserver:anonymous@cvs.moodle.sourceforge.net:/cvsroot/moodle co windows-cron
The beauty of this is if you go into the Moodle root and type "cvs update -dP" then all the trees below you will be updated at once, so it acts just like now.
(And of course, you can also use non-anonymous CVS if you are a Moodle developer).