From the documents, it appears that Amiga Inc made a payment and then some to Hyperion. If Hyperion actually cashed that check and took the money and really didn't provide the code as per their agreement, then thats really, really messed up.
From reading the agreement, it looks like Amiga had a lot of room to yank them around.
From what it looks like to me, I see one company thats untrustworthy and greedy ( Amiga Inc ) and another company that bit off more than they could chew and didn't play by the rules they agreed to ( Hyperion ).