Judging by what I have watched so far I can only say I'm very disappointed on most of the teams.
I've seen a documentary about the the Jabulani ball. They tell how and why they've chosen materials, surface, etc. Have you noticed it has some dotted parts and some parts with little "lines"? Well apparently that's not only aesthetic. The AMAZING things they do to the ball to try it!!! They bounce it, smash it, squelch it, heat it, put it in different wind tunnels, etc, etc. The money involved must be huge.
And then some brainless sport journalists (yeah, I know, that's redundant
) go and say with the conviction of those who know nothing about nothing: Why don't they change it? Geeeeez....