With Appcelerator, you can create cross-platform mobile development (iOS, Android, and mobile web apps) from a single code base.

With XML-UI, developers will be able to separate the view from the code; develop user interfaces using a familiar syntax; store and update the user interface remotely, which opens the way to exciting new opportunities -- developers will be able to fix the interface without releasing a software update, or even A/B test changes before the deployment to everyone.

Here's a video explaining the module:

http://www.youtube.com/watch?v=MZvgKGor1D8

And here's the source code:

https://github.com/nferraz/xmlui