It's close source because it's going to be a commercial product. I don't recall too many commercial companies just giving away all their technology.
Are they commercial or is it a hobby? It seems to take which ever form is the easiest for the current point.
I don't think this market is big enough for completely closed hardware.
The barriers to production are high enough to prevent large scale copying, there aren't enough players for it to matter.
The downside is that you get products like Prometheus that have died off and left us with bugs (dma) that could be fixed except for the fact that the source isn't available.
I think we are lucky to see the development of the C1+030 board to the LX+060 boards to the MX.
They've shown what they've shown to simply prove they are not vapor.
If they aren't for sale, then they are by definition vapor and no more than an interesting personal project.
They have collected no money. They owe no one anything.
When the product is done - judge it with your wallet.
I didn't say they were trying to rip us off. I'll be glad to buy one if it's available.
However, if you or anyone else is so inclined, perhaps I should to join the team and start printing T-shirts... $50 each ofcourse! 
If it was open source and money was needed, I'd be glad to help.
If it's commercial, then it's up to them to come up with capital, perhaps by selling an existing product to help fund further development.
That was my original point, offering constructive criticism in case they have no experience in managing a commercial project.
