For those who'd like to look at the submissions that came in through the October 2011 coding challenge, they're now all posted here:
https://www.mediawiki.org/wiki/October_2011_Coding_Challenge/Submissions
There's also an archive with the version of the code at the time of the submission.
Thanks to everyone who participated! While I would have loved to see more submissions, there are definitely a few that are worth a closer look. In coming weeks we'll be sending another email to participants with a survey to help us improve future outreach efforts, and of course we'll be selecting the winners and communicating with individual developers.
Comments on the submissions are very much welcome on the talk page. Greg will post more details soon on the judging process.
All the best, Erik