There's a reason it's not being outright said. By anyone.
It's not going to get answered. Posters are just shooting in the dark at this point, and those who know are trying at best to answer what they can without showing their hand.
So even if a poster gets it right, it's not going to get answered, and no one is getting steered into any direction other than what's been posted to help narrow down choices. Be happy it's something instead of nothing.
EDIT: And if you'll notice - the few people that started the discussions and had an idea about it have been quiet since everyone started "Is it this?"