Since not all are on twitter, here's the pic of one of the group who won the puzzle. Not sure if the guys next to the winner is part of the group or just happened to be there.

Go Wireless NZ @gowifi tweeted:
Wohoo! Completed puzzle!! Great job guys! #nznog http://ow.ly/i/8qIVj

Tweet: https://twitter.com/gowifi/status/560597249663582208