The six tasks consisted of creating a buzzer, creating a scoreboard, creating an applause-o-meter, move a clip-art kitten across the screen, make the clip-art kitten dance(,dance,dance), and teaching a new user how to build a patch to make an on-screen image change. And, to directly quote from NowPublic.com (since I read most of my info from there) :
The final event was a game of Pong, in which each team had to build a paddle powered by external input. Max/MSP's kitten-paddle was driven by a scream-o-meter. Pd-dextended's old-school paddle was driven by a piezo-enabled teletubby toy. Yes, someone had to spank Tinky-Winky in order to play the game.
It looks like it was a pretty interesting time from the clips, photos, and write-ups I found:
It's good to see that a collaborative open source effort like pd-extended can win in a competition of tasks ('cause who really cares how pretty your programming language is anyway) - even if it was 2-against-1.