Well, the 346 will be used on the SYD flight (CX 100/1) for the summer season. Originally, it will also be used to launch the NYC nonstop flight, but is obviously not happening. I suspect that it will show up randomly on CX's network... maybe on the YYZ flights soon.
To be fair, the new studio CX had some teething problems throughout the fleet... even on Boeing 747s and Airbus A340-300s. It is new technology and we need to give CX some times. Even SQ has problems with their systems too.
About A346s, I am sure that those teething problems will be resolved within the next quarter.
About the 2nd nonstop flight to LAX, it has just been eliminated till June 1, 2003, due to SARS. The sole nonstop will use Boeing 747.
Carfield