Sony Picture Book And Firewire (In)compatibilities?

Commander Mike asks: "Sony's Web site has a big disclaimer [see footnote #3] about not relying on the Firewire ^[?] port on the Picture Book being compatible with anything. I'm thinking about buying a Picture Book and would like to see if anyone has had any luck in hooking up a DVD or CDR/RW to it using Firewire. I'd rather not have to resort to using USB if possible. Also, is there a docking station out there for the new one yet?" Just about every article I've read on FireWire also talks about Sony i.Link being compatible, so why is Sony now backpedaling on the compatibility issue? Is this another attempt at "Embrace and Extend" or does Sony have a valid reason for this behavior?