Caleb will write a 20 second song for you based on the circle of fifths. Check out this blog post and tell him what you like: http://calebhugo.com/tone-row-the-circle-of-fifths/. Previous rewards included.
Be listed as a top sponsor in the app and the website. Choose/design an optional color scheme, font, etc. for the game that will be available to everyone. We will even link to your own app in the alternate UI and the credits (we must approve links). All previous rewards included.