The Gridiron Flow public beta is up at
www.gridironsoftware.com. I've been waiting awhile for this - I hope it lives up to the hype. This could be a very cool piece of software.
It is a file organization tool aimed at graphic designers and primarily shows all the links that files have to each other. It's also supposed to keep you from trashing files that that have been linked elsewhere - maybe no more "file not found errors"
My drive is being scanned by Flow as we speak, so we'll see how it works.