Based on screen shots I've seen, it looks like there is still no media scrubbing. Also when in the "Now Playing" view there is no hard link back to the album view showing the track listing like there is in iOS Music app. You have to press the back button. Let me explain what I see is wrong with the Music App:
The only software navigation you get is a hard link back to the Artist View. You have to hit the back button to get back to the track listing.
Now look at this. You get a direct link back to the track listing:
WP8 Music app doesn't have this.
The only software navigation you get is a hard link back to the Artist View. You have to hit the back button to get back to the track listing.
Now look at this. You get a direct link back to the track listing:
WP8 Music app doesn't have this.