In my experience Lynn never says no, but then she never says yes either.
The BBeB format would undoubtedly require a license from Sony. FW would need to have an interface to the Sony Reader PC software to DL the ebooks into its library so the titles could then be DL'd and authorized for that Reader.
Has anyone tried password protected PDF's on the Reader? This would provide roughly the same security FW has at present for other titles.