[Paleo Conservative]

The technical problems with the first 747 sound like the current issues with the A-380.

The main problem with the 747 was the engines. The first commercial flights were delayed a couple of months. The A380 is being delayed by over two years so far, but the engines aren't the problem, the airplane itself is. Boeing delivered over 100 747's in the first two years including 63 the first year. Airbus will have the A380 in very limited production till 2009.

[Prophet in the wilderness]

Didn't they start to work on the 747-200 a few months after the first 747-100s went into service ?
What was the main difference between the 100s and the 200s ? a more beefy landing gear, and stronger engines, and more windows in the upper deck ?