When you first start learning a new programming language, after a "Hello World" program, the next thing to try is a to-do application.
I decided that I would use the BlackBerry WebWorks platform as a means to test the script as well as to allow feedback from real users. This was also a platform that didn't have a lot of applications of this type so I would be more likely to get active users.
The design framework used is bbUI.js, which gives the application a native look & feel, with some additional styling using CSS.
I have used users feedback to implement new features, modify design and fix some errors in behavior.