CURATEcamp and Open Planets Foundation will hold a 24-hour (possibly more, due to time zones) online hackathon on file identification on Friday, November 16. The announcement says:
24hour+ live hackathon event where multi-time zone teams work on common technical projects related to the CURATEcamp iPres 2012 file id discussions.
Project proposals can be made by anyone.
We will start the day with New Zealand (GMT +12:00) and end with North America West Coast wrapping up project(s), hopefully with one or two solid deliverables by 12 midnight-ish PST (GMT -8:00).