|We love transparency.|
We also think that participants should have access to all of the code that is submitted for a challenge. That way the challenge is not only about winning money and badges but becomes a learning process as well. The whole community becomes better from the shared submissions.
We ran our CloudSpokes Public Scorecard Service challenge to build the Apex REST service to return the scorecard results for a challenge. There is no front-end design work involved, just the Apex REST service that will call from the CloudSpokes rails site. It was interesting to see that the submissions were not from our usual (large) pool of normal Force.com developers. First and second place were won by members that came to CloudSpokes with other skills besides Apex and Visualforce and have gravitated to these challenges over time. We recently announced that the result from this challenge are already live on the site.