As far as PR, it stinks but I don't thing they are allowed to disclose much or they don't want to open their big mouths about something and pizz off Duke. Yeah, the company could promote itself but they still have issues. Once they clear some of them up then it's time to promote. If they don't do it then we have a glaring problem. Also, I don't thing it's time to say anything since there's still a lot of uncertainty surrounding the smart grid in general.
The float is disproportionate. Hopefully, when the day arrives when vicis wants to sell, we can buy those shares thus reducing the float enormously. If all goes as planned or as things seem to be going, there will be buyout bids and those companies would absorb those shares.
I'm just throwing things out there and I'm not the most knowledgeable regarding share structure and PR but I do know that Ambient is sitting real pretty to do some huge things. If they can get those new customers, all those things you mentioned won't even matter. New customers trump everything and will solve pretty much any problem Ambient has.
All my modest opinion,
Sloth