Mendix applications run pretty stable in the Android browsers (Except Opera).
If you want an actual application to interface with your Mendix server, you can easily do this by setting up webservices, which your Android application can connect with.
I might still have a prototype somewhere of an android app that displays Mendix AppStore items in a simple list, using the same webservices the Modeler uses, if you're interested.
lease am so mch interested in your code, would like to knw how dat works