New Yorkers are certainly a savvy bunch, which is why it's surprising that there is a lot of chatter on Twitter right now about an alleged UFO sighting in the city. While there's been no documentation, it hasn't stopped thousands of twitterers from postulating. This website claims all the hooplah is in reference to a retired NORAD general predicting a UFO visit on October 13, 2010.

A high percentage of web traffic is pointing to this video, posted today, as evidence:

UPDATE:
Twitter user says the sighting were actually balloons.