[kdjameson]

My understanding is that the auto-rotate function of the Photos and Music tabs is standard for Sense 2.5. Maybe some others can confirm whether this is true. I believe it uses the g-sensor. With the Music tab, the function does more than just rotate the screen.

In portrait mode, the screen shows the album cover for the current song, with covers for before and after songs lining up to either side, slightly underlapping each other, sort of like the Photos tab.

In landscape mode, the screen displays by album, with the current album in the center of the screen, and other albums lining up to the right and left.

The transition between portrait and landscape modes is animated and very cool to watch. If you can find out how to make it work, I think you'll want it in your ROMs.