Unity Examples

Instantiating objects/creating Prefabs:

http://docs.unity3d.com/Manual/InstantiatingPrefabs.html

Plugins:

http://docs.unity3d.com/Manual/Plugins.html

Roll-A-Ball:

http://unity3d.com/learn/tutorials/projects/roll-a-ball

http://unity3d.com/learn/tutorials/modules/beginner/platform-specific/accelerometer-input

Touch/Orbit Camera:

http://forum.unity3d.com/threads/touch-to-orbit-script.15181/

https://www.youtube.com/watch?v=uUIXFL2ic7k&src_vid=QrrfAVNDudc&feature=iv&annotation_id=annotation_1240758309

http://www.devination.com/2014/01/unity-touchlogic3d-tutorial-improved.html

Generating Scenes in Code:

http://answers.unity3d.com/questions/547496/how-do-i-dynamically-generate-scenes.html

Free Primatives

http://forum.unity3d.com/threads/release-free-primitives.234595/