Scriptkit an iPad app that allows you to create prototype iPad apps by simply dragging and dropping code snippets from a library of code and APIs.
The demo version of the app is free, but I just upgraded to the full version ($11.99) which allows you to save your prototype apps.
Scriptkit gets me excited about coding the same way
Macromedia Adobe Flash used to get me excited about coding. I would never call myself a programmer, but I got to point with Flash where I was doing things like parsing XML and talking with PHP and databases. Flash empowered me to make websites and widgets without being an advanced programmer.
When you give artists and designers the ability to easily work with code amazing things can happen.