Suggestions:
1) Make the selected wall item larger and maybe add a glow, change it's color, make it more obvious
2) Show configurable thumbnail text below the selected item
3) Pushing down on the bottom-most item in a column should move to the top item in the next column to the right
4) The Album back track listing needs more options:
* Album needs Play All, Add All, More (for add shuffled etc...)
* Each track needs: Play, Add, More (for add shuffled etc...)
* Maybe they should be icons instead of text?
5) If the cursor is in one of the rollers, the selected wall item should lose it's glow (Many times I've thought I was in the wall, when I was actually in the roller)
6) Add a way to dig-into an item. Say start with an Album Artist (auto) wall and selecting an Artist shows a wall with only that Artist's Albums. In other words, make it work like the Thumbnail view.
7) Add a way to see where you're at within the wall
Limit the reflection to say 2/3rd of the bottom most row of items. It just looks wrong the way it is now.
-John