MegaGames.com has an article up about supposed "secret hardware" being developed for the PS3. This information comes, of course, from an undisclosed, "very reliable" source.

In conclusion, we have a very reliable source that claims Sony will have a PS3 peripheral which will recognize a user and his entire environment as well as his movements and will incorporate them into useful, in-console actions. The applications of this tech to gaming are obvious and if this story is proved right, Sony may yet manage to steal Nintendo's thunder in this generation of the console wars.

The source referenced Minority Report, specifically the scenes in which Tom Cruise hopped on Colin Farrell's couch manipulated a computer screen in the air, except this would be without the need for special gloves. They go on to say the add-on will be available during the PS3's launch in November, and that Logitech will be selling a PC version a few months later.

For now, I don't buy it. Not only because the only current source is "some dude said so," but because Sony was stupid enough to drop the price at E3, but not this? If this thing was actually launching with the system, wouldn't they want to make sure people actually know about it? Even super-secretive Nintendo has laid (almost) all of its cards on the table by now.

The company making the technology has a website here, but I can't get in right now. It may be getting swamped due to this news travelling around.