I like when Pain asked if the chakara in their feet was to counter his jutsu, and then said that it was useless when faced by overwhelming power. It kind of felt like he was all like "Oh let me see if you can still stand firm after this one. ^^

The greatest village got decimated in a matter of seconds. I wonder how this will shift the power balance. Will some other big village invade now? Now would be the chance. How strong can they be after this? Even some of the smaller great villages could make their move now.