The Hackathon runs from 9 A.M. Sunday July 6 to 9 P.M. Monday July 7--36 hours of open hacking. We'll have chairs, tables, a whiteboard, wireless, and a hub. You should bring laptops and something to hack on.
What's to hack on? Add a feature to your favourite module. Work through the TODO list in the Perl core. Clean up the Perl bug database. Tidy up the Perl docs. Add a feature to parrot. Pick a module on CPAN with a lot of bug reports in the CPAN RT database, and fix those bugs