It's all Hype at the moment, including the old fashioned copper wire they used instead of the fiber optics the system was designed for.
Eventually they'll get around to doing it right. Just like the BS of giving the phony name of "Thunderbolt". Apple marketing hype at it's finest. Anything to make it seem like it's far better than anything else on the market.
That's the benefit of staying up to date on this stuff, without the knowledge you can easily be conned. It happens everyday, especially with Apple, they are the masters of manipulation.
I'm not hating on Apple, Just calling it like it is
Apple didn't decide on the name, Intel did. Also, by the time optical Thunderbolt ports start appearing, copper will already have been standardized to the point where it's not cost effective to upgrade. It's probably going to take around 6-7 years for the optical version to get a foothold on the market.
I can't wait for LaCie to release the Thunderbolt drive; imagine the amount of time Time Machine would take!