Summary
Now that you've acquired a taste for the capabilities of touch in OUYA games, you can start creating games that diverge from common controller-based games that don't feature touch such as Xbox 360 and PlayStation 3 games. You've also learned more about manipulating data in both the Unity engine and the OUYA SDK, which can help you create solutions for complex custom systems that don't have pre-written implementations.
In the next chapter, we'll move back to our marble prototype and program a system that will allow us to save data from the game, even after it stops running.