How roomy do you think is the upper deck of the Airbus A380?
A picture of the upper deck of the first plane - with a complete, 8 abreast Economy row in picture, but far in the background:
http://www.airliners.net/open.file/972843/L/
Do you fancy spending hours in that window seat?
A closer view of a partial row:
http://www.airliners.net/open.file/958995/L/
For comparison, an Airbus 340-600 prototype in a comparable stage of completeness:
http://www.airliners.net/open.file/371822/L/
Do A340-600 and A380 use water tanks of equal size?
I noticed that both pictures have 4 rows of tanks and thought if they provide equal scale.
The A340-600 has much narrower aisle in the middle - but then the side tanks are a bit farther from the wall.
A part of the A380 has been made more habitable - with Business seats:
http://www.airliners.net/open.file/958875/L/
For comparison, one example of a 340-600 Business Class in service:
http://www.airliners.net/open.file/535228/L/
So - which one do you think is the more roomy and comfortable?