I had never heard of this stuff before your post and I think I am glad for that. A quick search on google.com for "thermo ply" turned up this article: http://www.boston.com/globe/spotlight/stories/day3_bar2.htm
This stuff looks like total JUNK to me. WHY on EARTH would you want to use this stuff? Will you save a couple of bucks per sheet vs. osb or plywood? Believe me, it wouldn't be worth it. I have been involved with houses that were built without plywood sheathing, ie: celotex outside and metal "T" windbracing let in, and they were houses of cards. This stuff looks even worse than that and I would NEVER use it.