Rocky & tojaam - We should probably clarify one thing. Bob Jones specifically told that they will test a number of photovoltaic products on the demostrator strat. They have indeed narrowed the supplier field down to the products that they believe will be on the final strat, but Bob said they would be testing at least 2 photovoltaic products on the skin of the strat to see how they respond in the real world environment at 45,000+ feet. I'm not sure Bob had shared this with others at the meeting, but I wanted to let everyone know what I heard.
rocky - to me that wording just says when strat 2 is complete it will inlude all the tech they will use in the commercial strats, but does not necessary mean all the materials are now solid