Version 4.0.2 What's worse. - No more Landscape - Compulsory registration otherwise you can not play local music so (No MP3 player function without registration) - A common application for all Amazon apps. Why? So what I think is still ok as selectable feature. - You might not want to be logged on all devices with all purchasing functions. eg the tablet offenrum is to make music and guests also be able to choose music, I do not want that the Amazon app all Einkäufte reveal etc ..
What has improved, I can not say, I could find itself no big differences in the handling, the new version but not getest long and again the 2.8.1 installed me.
The does what an MP3 and department should make app. Hope that you can use for a long time until the 4 version has changed times vernüftigt.