No. There are no logic board upgrades for the Clamshell that have USB 2.0.

"In order of speed (lowest first)

USB 1.0 -> USB 1.1 -> FW400 -> USB 2.0 -> FW800"

Not really.

For all practical intents and purposes, FW400 is MUCH faster than USB 2.0, and even faster than USB 3.0 in many instances.

This Firewire is FW400 which runs at 400Mbps rather than USB 1.1 which runs at 12Mbps.

If you are connecting an external drive, make sure it has a FW connector.

The hardware does not support USB 2.0. Add a USB 2.0 external hub and it still runs at USB 1.1 at the iBook connector.

In order of speed (lowest first)

USB 1.0 -> USB 1.1 -> FW400 -> USB 2.0 -> FW800

1Mbps -> 12Mbps -> 400Mbps -> 480Mbps -> 800Mbps

But in the best tradition of all of these standards, YMMV.

Mark,

I guess my point was that FW400 is faster than USB1.1.

I have Macs with USB1.1 and FW ports and I use FW drives. I couldn't be annoyed with the slow speeds of USB1.1.