iDevGames.com is a Mac oriented site for game programmers.
Incubator07 is a voluntary community game project. It is from and for members of the forum at iDevGames. You are looking at the SourceForge page of that community project.
For participating, read the incubator07 forum at iDevGames.
For even more information, read the project wiki.
Code and binaries can be found here on SourceForge.