from Amazon, or check out the Open Script Editor from Finder… | November 1, 2007
It seems for whatever reason you can open the Script Editor from the Finder with the [cmd]+[shift]+[8] keyboard shortcut. Not sure why this key binding is there, I haven’t found any documentation about it, but it seems too specific to be an accident.
11/14/2007: Turns out this is mapped… from the Services menu… should have looked there I guess. This was pointed out to me from Rob Griffiths of macosxhints.