I guess this means they're planning on 400 Mbps on each data line. Ampex also uses NetSCSI over ethernet to control their autochangers. Also, obviously, used for connecting many servers to their clients. The host interfaces are rapidly becoming cheaper, but the switches are still expensive. After having been somewhat dormant for a while, standards activity on new versions of 1394 is heating up again.
Faster versions are in the works, as is a protocol for doing disks across it.
Disk drives from Conner and Micropolis, and Pathlight and Adaptec and expected to do host adapters. See sunrise.scu.edu for more info.