Come on, the Shark is nothing but a rebranded Sonnet card for the MAC.
Even IF they can get OS4 running, which I strongly doubt, then chances are great that Sonnet no longer produces these cards. And no, I don't see elbox having warehouses full of stock just waiting to be sold.
I count on Shark being 100% vaporware. Maybe even the Dragon, which was supposed to have been released ages ago.
Nope, I am not betting on Elbox. My hopes for new hardware in the short(ish) term is on E3B's excellent USB card and maybe some interesting stuff from Jens.