> USB 2 is NOT a Chris Hodges thing. Its NicoPPC and yes it uses Poseidon.

Just to clarify this a bit: Poseidon added support for some USB 2.0 specific stuff in V3.x. The only thing needed for USB2.0 are lowlevel drivers which already exist for ages as Guido's ArakAttack and the yet unreleased NicoPPC drivers. The Elbox Spider driver also has limited support for USB 2.0 (but does not for example support using of USB 1.1 devices behind USB 2.0 hubs).

The NicoPPC USB drivers are /not/ an USB stack itself, but "merely"* the necessary low level drivers for talking to the host controller.

* Still a good portion of work!