This is a growing set of sample code contributed by the community and the core Three20 team. Each sample project contains its own README.mdown with a project overview describing the purpose of the project and where to look for interesting source code.
Using git, run the following commands somewhere on your computer:
git clone git://github.com/Three20/Samples.git
git clone git://github.com/facebook/three20.git
You can now open up any of the sample projects within the Samples/ directory and build and run them.
Some projects have extra targets for different versions of Xcode. If you are running Xcode 3.2.4 (the current latest public build), you shouldn't have to worry about this. If you're running Xcode 3.2.5, however, there might be a target that you can choose with the -Xcode3.2.5 suffix. This will simplify the build process for you.