Yeah, I'm not sure I'm clear on this either.

Is the driver Aeon is waiting on, the driver they originally contract with Mincea for, or the driver which Mincea now claims is ready (that would appear to have been created by a subcontractor), or for the purpose of fulfilling the contract does the later subsume/replace the earlier?

Assuming that when Mincea's driver development was discontinued, a sub was hired to fulfill the contract, this is the clearest understanding I can come to from this jumbled description of events.

That the latest driver (again, supposedly ready) is a substitute for the earlier project.

And that regardless of Hyperion's position, Aeon wanted to get a driver in the hands of their beta testers NOW and paid for a second (which could, in a weird way, be considered the third).