Checking our flight today, I discovered we're flying to Australia on the new Airbus A380. I tried to book this plane for our last trip, back in October 2008, but that was the month Qantas started using the Airbus and it was booked out. This time we got the Airbus without trying. It's not exactly futuristic, but it's new and shiny.
Compared to the 747, this plane has 50% less cabin noise (perhaps not a good thing when one has a crying baby) and increased cabin air pressure -- both of which are supposed to reduce travel fatigue. It has larger windows and overhead bins, and lots more headroom.
The seats are 3.5 cm wider but I can't find any mention of more leg room. However, our current seat assignment is right in front of the self-service bar (we've been put there because there's a baby bassinet) and the leg room is much bigger than the average seat gets. I imagine there will be lots of traffic, but that just means more people to admire Sophie and more interesting things for Sophie to look and smile at.
MCP won't fly anyone but Qantas. I used to fly United because it tended to be cheaper, but there is indeed a noticeable difference in service between the two airlines. MCP says Australia is 20 years behind in many respects (no online shopping at Target!??) but in the case of flying, that's a good thing for us Economy passengers. On our last trip, our breakfast included a muffin in a fancy origami box and color-coordinated napkins. Wow.