KYMM  Of course we're using Tiger!

Some are running OS9 concurrently with Panther (only way to run all apps)  
(Version 1.2)

KYMM  Cocoa > cross-platform  
(Version 0.9.3)

KYMM  It went straight to beachball and then hung for a few minutes and then crashed. Even the interface did not look like a mac app, more like a settings window for some unix program....  
(Version 1.0)

KYMM  Wow, I wish I had found this before 'upgrading' to Tiger!

It is actually different from the Tiger version:

This one is a nice randomized collage of translucent album covers. No options (yet).

Mac OS 10.4's saver loads a bunch of art first, then tiles them all onscreen and flips them one at a time, each flip changes that tile to a new cover art. You get to pick how many rows there are, and a delay.

I like that this one works in Tiger as well, and loads faster! Plus, you get some wierd effects when an artist shows up on/through a different album cover...

However, I expected more from all album art savers, something in 3D (openGL?) with cubes or towers or flying art... but that is something to wish for in the future. So far, so good.  
(Version 1.0)

KYMM  I have to agree that Spotlight was written by what seems to be morons. No UI features like adjustable or addable columns, no decent prefs in a convenient place, even the 'menu' is fake and doesn't behave like a normal menu. Plus, they couldn't decide whether to start it up via Cmd-Spacebar or Cmd-F, so they just used both (and even a third one). Maybe the indexing technology is worthwhile, but: didnt we have that already under OS 8??  
(Version 1.0.3a)

KYMM  Version 1.3.2 finally has it: My custom columns are there! I always have to sort results by size to see what big items to get rid of... Apple could really learn from Houdah!  
(Version 1.3.2)