So what is the point of saying that the Shark is a re-badged Crescendo card?
Because it is.
SharkPPC has never been seen run anything "Amiga". There is a reason for this: It is the Crescendo card with modified heatsink (which says SharkPPC & elbox).
Sure, if it would actually be possible to buy the Crescendo card and use it in a Mediator 4000 then I could see your point.
Ah you mean as possible as to buy regular NEC USB 2.0 card and use it instead of SpiderUSB 2.0 card?
But we still have to wait for the Shark package to use the card with an Amiga.
SharkPPC is this Crescendo card. But I am sure Elbox would do anything in their power to stop people from bying the card from Crescendo or Ebay (probably the same tricks as used with SpiderUSB).
(That assuming this Shark thing would be real in the first place)