Several sites have reposted photos of a "torched" MacBook Power connector which was originally posted on Flickr.
The MagSafe connector reportedly spontaneously "burned up". The user took down the photos after Apple contacted him to investigate the potential issue:
The reason for this is that Apple, after dealing with this issue, kindly requested me to remove the pictures at least until their engineers had a change to investigate this issue. Since Apple support has been very helpful and already is getting me a new Macbook asap, I'm happy to answer their request.