Workout in the Park

I just happened to pick up a Self magazine on my walk to work this morning and they are having what looks like a really fun day of fitness in Central Park on May 7.  I've booked my ticket, but would really like to not go alone.  Would any of the New York based people (can't remember if any read this section of the forum) like to join me?

http://www.thatsfit.com/2011/03/07/self-magazine-workout-in-the-park-returns/
http://www.selfworkoutinthepark.com/default.asp
https://www.selfworkoutintheparkevents.com/