Hi,
I have created a doodle pool for the Hackathon:
http://doodle.com/poll/hcc83a4yzgnecq4w
It spawns 2-days across the month of March (Starting on Mondays or Thrusdays).
It has the If-Need-Be option.
A note (probably to Yvan and maybe others): Note that this doodle is only going out to people on the galaxy-dev mailing. Feel free to forward this to anyone else that you might think may be interested.
Thanks, Tiago