PaterAlf: The draw between Argentina and Iceland is the first big surprise. In the end it might have been a little lucky for Iceland, but on the other hand Argentina's game was rather unimaginative and so they didn't really deserve to win.
Well, I disagree. Iceland has a huge potential and they play collectively. They won their world cup qualification group in front of Croatia, Ukraine and Turkey. They can even qualify to the second round. Argentina, even though they have a very talented squad led by Messi, suffers in offense and they don't use their full potential, at all. They really need to be careful. Croatia and Iceland can finish the group in the top 2 and Argentina can quit the world cup in the first round.
The biggest surprise so far for me is Iran. I didn't expect them to win their first match. I can expect a 0-0 draw, but not a 0-1 win. Morrocco is a really talented team and somehow, with the help of luck (Morrocco's own goal), Iran beat them.