I posted this on Facebook as well, but there always seem to be a spamfest of fanboy comments, so maybe you'll notice it here, where the activity is a bit slower:
The current music app in Xperia S (2.3.7) is not very good
While vastly superior to everything else I've seen in terms of aesthetics, the functionality seems lacking:
• Navigation: pressing Back in the player closes the app instead of navigating a step back. You need to go to the My Music tab and navigate your way back to the album/artist you are currently listening to, and it is really unnecessary. I mean, the Home button does the same, so why close the app with the Back button as well?
• Shuffle: Now, I am the kind of person who likes to shuffle my music, but I often want to start with a certain song too. Now, if I select a certain song, I need to press Menu > Shuffle > Enable Shuffle to turn it on. And shuffle is off by default and you need to manually activate every time you select a song to start with. It would be so much easier if there just were Shuffle and Repeat toggle buttons in the Player, and their settings were saved upon app exit.
• Playlist editing: Moving a song up and down in the Playlist view is painstakingly slow and sometimes it screws up the order of other songs in the list.
I appreciate the work you do, and I hope to see these things improved in the Walkman app in your ICS release