Since the previous post I've been in contact with Maurice Gowen of Cascade Designs regarding the NeoAir. Maurice kindly resolved the issue regarding the labelling of the packaged mat that we found and photographed at the Outdoor Trade Show... it is indeed a Regular (20" x 72") mat. If it can be rolled down to that size after being used, I'll be even more impressed. Maybe we'll find out soon - Maurice has been generous enough to put me on the list for testing this product prior to its commercial release on April 1st 2009. He also granted me permission to post the following tech-spec document. Click it to see a clearer, larger version.
Therm-a-Rest NeoAir technical information (posted with permission of Maurice Gowen, Cascade Designs)