Why don you use a USB 2.0 or Firewire interface?
Currently, USB 2.0 and Firewire are both too expensive and not extensively tested by our developers to be approved as safe for a real time live performance instrument. Furthermore, the number of available peripherals that fully support the bandwidth of these interface formats is still too small. However, we might make these formats available as a future option as soon as more testing has been conducted.