I thought it was absolutely amazing! That made a U2 fan out of me, that's for sure. I thought the 2nd song was incredible and the screen displaying the names of all the victims of 9/11 really added to the emotion. I loved it!
If they truely wanted to do something patriotic they should a picked an American band instead of a band from Ireland. Other than that I thought it was good. However, I thought that the half-time show for Super Bowl XXXV was way better.
I too thought that last years halftime was better-- but at the same time I find them hard to compare. They had a different 'vibe'--you know? I thought U2 did a good job but I am not the biggest Bono fan. He says arogant things that make me think less of him (although one of my friends has met him three times and said he was nothing but humble). I don't know*shrugs*