Suggestion for Flex Mobile Application
===

Im just a beginner in flex mobile application development. 
I recently planned to develop mobile application in flex, as i was doing my research on internet i came accross different ways of making mobile apps in flex. Like recently i came accross flex/spring mobile app using java-backend. Though i also came accross that Flex alone is capable of developing mobile apps. So the the question arises in my mind is that in which way it is better and why developing mobile apps in Flex alone, using java-backend or integrate flex with spring etc. Plz guide me and share your thoughts that would be kind.