Well, apple is nto so famous outside of the USA anyway.
That is the problem.
Most ppl in USA buy stuff becouse in USA "you buy stuff". So if there is this new Apple iPad, you buy it.
In the rest of the world, ppl normally dont buy new gadgets that they dont need for a long time. In this case, getting a delay in australia and everywhere else till christmas, will mean that the % of ipads that friends show to other friends will be big enought , that eventually it will take over.
However, if you have galaxy and ipad, then ppl will compare both, and then if i got an ipad, and it turns out to be worse, i will get angry at apple (becouse i wont at myself , right?), and put that on forums, etc.
Its a siple marketing trick, nothing more. And Apple, Samsung and the court know all this, but they follow "A Law" that is basicly possible to abuse.