The update seemed to be useless, there was no change log. They are not moving ahead of bug fixes. May be the last update had shown some improvement in 1GB devices but no change in 512 Mb ones. Even the developers are showing a lot more potential by making apps like Onemusic. I'm not a developer but is it that tough for a giant like Microsoft to build a descent music app for their mobile platform. People are suggesting quite good things on the suggestions page but the implementation is too slow. Lets say if it will take time but at least they should comment something regarding the Music app. We are not that desperate for BBM or some other fancy app but first please fix the basic ones. Sometimes I think that may be I did a mistake by installing developer preview. That time I had no idea that it gonna be this bad. Other improvements are good but this app is ruining everything. :-(