I've been using the Manfolio from County Comm for a while now.
http://www.countycomm.com/manfo.html
At another user's suggesting, I took some photos of it with the eDGe and how I use it.
http://s1183.photobucket.com/albums/x463/OncTech/eDGe/
I removed the smaller pockets from the center and added the torn-out cardboard back of a legal pad to give it some rigidity. The small stick-like device seen in some of the pics is a independent battery powered portable scanner from Brookstone. It stores to microSD, so I keep the SD card adapter in one of the pockets.