I had something similar to the Outdoor Research tri-fold organizer, except it was really a tri-fold camp toiletry organizer. It held one of my first attempts at a survival kit after finding this forum.

Personally, I didn't like the tri-fold idea because the way the gear was stored and the way the organizer opened up allowed the contents to fall out and/or move around.

I've gone to a small blue (clear vinyl front) AMK pouch that I separated from the medical kit and put the contents into a Ziploc bag instead. It's small and fits in a cargo pocket if you need too, but better in a backpack or travel bag.

I haven't used the Spec Ops "Pack Rat" organizer but I've thought about ordering one. It sure looks well thought out.