as discussed with Jay earlier, we have created a demo application around Aerogear. It is a bit more complex than the quickstart one and demonstrates how to create two distinct user interfaces for desktop and mobile. You can find the details here: http://blog.akquinet.de/2012/07/26/developing-a-cross-platform-application-for-mobiles-and-desktops-with-aerogear/
The source is found here:
We would like to contribute it to Aerogear. If you are interested, we could also create a maven archetype out of it.
Please let us know what you think.