I don't like how LaserLight uses GUI scripting to achieve it's goal, and the way it uses the clipboard.

The problem that forces them to use GUI scripting is that the Finder Applescript command to search using Spotlight is broken. When you use the command, you only get a weird blank Spotlight window.

This Applescript command is described in the finder Applescript dictionnary (Finder.rsrc). The AppleEvent ID for this command is "fndr ffnd". I found that there is another unused AppleEvent: "fndr find". I changed the "ffnd" to "find" in Finder.rsrc, hoping that it could fix the bug...But no, what it does it that instead of opening a blank Spotlight window, it opens a blank Finder search window. This command would be useful too, if it worked...

So if Apple fixes those two Applescript commands, it would be much easier to make a Spotlight front-end.