Where did you see this? Was it on television, or did it come from other sources?
From your description, I'm guessing that these images will rank up there with the video taken of the crash of 232 in Sioux City, and the Air France A320 crash in Tolouse.
This may be one of the most-captured crash in the history of aviation, as far as media is concerned. I have mixed feelings about watching this tape if it ever comes out, but it might help investigators figure out what happened. I also hope that data from the FDR's and CVR are released sooner rather than later so that the public, and most importantly, the families of victims, can get some answers.