YouTube is a fun distraction for many Internet users where you can go to watch music videos and see other geeks make a fool of themselves. The thing that is common to many videos on the service is poor quality, and let's face it anything less than HD res is poor quality today.
With the plethora of new, cheap 1080p capable camcorders on the market today YouTube is now set to start supporting the 1080p resolution. That means that you can make a fool out of yourself in 1080p HD glory and let everyone see how bad your complexion is.
YouTube also notes that users who uploaded their videos in 1080p before and had the video changed to 720p on upload will be getting encoded to 1080p for viewing. The 1080p videos will also be viewable full screen, if your TV or monitor supports that resolution.