If you follow the 43Folders websites (Site, Google Group, Wiki) you’re no doubt familiar with Getting Things Done (GTD). I’ve not read the book myself (but Josh is!) but know that a system of tagging to-do items with a @ prefix is one of the cornerstones. Take that tagging system (for instance, give your resume.doc a Spotlight Comment of @resume) to your Spotlight Comments and use this handy Dashboard widget to keep track of those tags!
It will only return Spotlight Comments that have a @ prefix, so it won’t work on all your Comments. But it does give a nice little list of all @tags on your system, and the count for each one. Now I’d be interested in finding a way to grab ANY Spotlight Comments that I’ve added, regardless of their prefix. Any ideas?