Take a look at Rhodes. http://www.rhomobile.com/ http://www.rhomobile.com/ Here's the pitch: "Rhodes is the industry's first open source framework for rapidly

Take a look at Rhodes. http://www.rhomobile.com/ http://www.rhomobile.com/ Here's the pitch: "Rhodes is the industry's first open source framework for rapidly building mobile applications for all major smartphone operating systems. Rhodes allows developers to write a smartphone application once using simple HTML and it automatically builds native applications for all smartphones including iPhone, BlackBerry, Windows Mobile, Symbian and now Android." The framework is based in Ruby.