NO you do not have to do them all of the day's burpees at once. Just get them done on a given day. You can do 10 in the morning, 10 in the afternoon and 10 at night for 30. Split them up however you like, but do get them done.
One week till the first burpee!!! Those of us who will be at the New Year's day football game between Brooklyn and New Bronxchesterland (New Jersey, Bronx, Westchester and Rockland counties vs. the Greatest Burrough in the World) can do the first ceremonial burpee together. What fun!! :)
Also, I think we should hold some celebrations. Maybe the first one at 30 burpees? So on January 30th. How shall we celebrate?