Ciena hosted a TDM presentation today. During the discussion, they mentioned 800Gig/E links in the near future. EIGHT HUNDRED GIGABITS PER SECOND. My head exploded. Intel has an 800Gbps technology piece used for storage interconnects called MXC. It's full-duplex -- so 800Gbps each way. It runs up to 300 meters and would be nifty to have for SANs.
I'd love to see an 800Gbps telecom link though. Woof. Am hunting for it now!