I noticed that Coca Cola Australia has recently set up a Foursquare compentition.
Basically what this competition involves is:
1. Adding the coke machine fairy to Foursquare as a friend, then they will send you clues
to your mobile about where the Coke fairy is heading.
2. The coke faily will then place a winning bottle in the machine each day.
3. Be number one to get to that machine then you will recieve a prize.
4. Shout out that you are their with the winning bottle then the fairy will arrive with a prize.
At the moment we are half way into September and I see only 682 friends on the page, I guess the user rates in Sydney are not crazy for Foursquare yet I would have expected a few more.