The company would presumably still be able to hit its initial target of 10Gbps speeds using copper cabling which, according to Intel, will be more than adequate for the majority of user needs today. By comparison, the relatively new USB 3.0 protocol sports a maximum transfer rate of 4.8Gbps. That doesnt mean that Intel isnt working on a fiber optic connection. Eventually they will make the move to fiber optic cabling with the potential of reaching up to 100Gbps transmission speeds after a few years its just going to take longer for it to be implemented.
Permutter didnt say which companies are the first supporters and when complete products will be shipped. Rumors have pointed at Apple and Sony as two of the main forces pushing Intel to get Light Peak out the door, so well be looking forward to any announcements from them in the upcoming months.