Symantec has a post on their forums here explaining the situation. They claim that it was an erroneously unsigned update that caused the problem, and the erasure of forum posts was due to spamming of the forum.
TEDChris writes "Here's an intriguing attempt at a versatile new tech device that tries to augment the wearer's five senses. It comes out of Patty Maes's group at the MIT Media Lab. By combining a computerized personal projector with a camera and linking both to the Net, a host of surprising new applications becomes possible. This 8-minute demo created a lot of buzz at TED last month and was posted online today. Would love to know what the Slashdot community makes of it."
I don't think having cameras in public places is really giving up any freedoms. If they had cameras in my home or workplace, I would be a little more concerned, but it's public! Anyone could be sitting on a park bench watching you just like the camera is watching you. What's the big deal?