Hey LJ, thanks for remembering me! :)
Well, since Office Designer and Software Design were NOT 24h invitationals, it was only necessary to adjust my presentation schedule for both of them (they collided two times indeed, but nothing that could not be changed by speaking to the organizers).
But I do believe that things would be complicated if someone is in the finals of more than one invitational and one of them is a 24h invitational. But I also don't think it is fair to avoid someone from competing in more than one invitational... so I think that what we have here is a bug in the Matrix! Seriously speaking, I think that the "chosen one" will need to split his/her time between all of his/her invitational finals.
[]s
-- AFurtado