But how useful is it? (Score 1)

I'd love to have that kind of speed, but I must agree...to do what with? What kind of redicilous storage system will be used to store say..the data collected if this link was running at full speed for 24 hours?

Maybe there will be uses for long distance transfers..ie. with use of some multiplexing, but otherwise I cannot think off what it could be used for in the private/small business sector.