Developing a functional application is the first step, doing it securely is the second and effective one. Do you prevent hackers of going into your source code? How can you prevent Man in the Middle attacks in your application? Do you know how easy is to make code injections in an already existing application?
This talk with explore some of the common attacks an Android application can suffer, and it will introduce measures to mitigate the risk. If you are worried about how to cover the weak point of your application, come to this talk!