Bit Tech reports Intel has scheduled a press conference for CES 2011 and it is heavily speculated that this will mark the launch of Sandy Bridge. However, actual reviews of Sandy Bridge won't be allowed to hit the web until January 9th.
Intel is rumoured to be launching Sandy Bridge at CES in Las Vegas according to motherboard manufacturers we've spoken to. Intel has booked a press conference for the CES event and it is heavily speculated that this will mark the official launch.
You can see the press event details on the CES site, though details are scarce.