I wrote a river of news reader called Android Rivers based on Kotlin - the github code is here http://goo.gl/FdEPw http://goo.gl/FdEPw. The app is available at

I wrote a river of news reader called Android Rivers based on Kotlin - the github code is here http://goo.gl/FdEPw http://goo.gl/FdEPw. The app is available at Google Play http://goo.gl/kShgp http://goo.gl/kShgp (I made a new release today). Feel free to evaluate the "start up" performance of my app. My only problem with Kotlin so far is I haven't managed to figure out how to run ProGuard with it to reduce the APK. The Kotlin lib itself is pretty reasonable(less than 500KB). Edit: add technical profile of Android Rivers Using SQLite database High performance XML parsing(RSS 1.0/2.0,ATOM and OPML) High performance JSON parsing(RiverJs) Media Service (custom podcast player) Writing Android Service Accessing Android Clipboard Fragments Implementing Holo theme in Android 2.2 above Library modules First class Outliner UI support Asynchronous operations Managing file system Creating custom dialogs Implementing Sliding Menu Asynchronous HTTP calls Integrating Android Java library Implementing Arabic language support