Brian Blair has posted photos of his NASB In Touch Ministries Wide Margin Edition in Blue Calfskin to Flickr, including the one seen here, which demonstrates the limp binding. Here's what he has to say about it:
"It features a one inch wide margin around the text, Concordance, Maps, Presentation Page, Verse Format, Black Letter, Two Column Text. It is 10 x 7" with 1150pp OT and 336pp in the NT. The one thing to say first about it is that it is limp or maybe liquid would be a better word - especially for such a large Bible. In fact it makes it quite a difficult Bible to carry in one hand, one has to hold it like a clothes peg in the hand or close to the body. The leather is quite spongy as the covers seem to have no support in them - you can roll them up from the corners. The margins are decent and the pages bright and substancial enough for highlighting and notetaking without too much see-through."
I'd heard about these before, but this is the first time I've seen what they look like. Pretty interesting, I'd say. Thanks, Brian, for letting us have a look!