Just an FYI in case someone has not yet posted this.

In the OP in the Mass Effect Demo FAQ thread Jessica said this:
"Jessica Merizan wrote...
What are the details of the Mass Effect 3 pre-release demo?
•The Mass Effect 3 pre-release demo will launch in January 2012 (exact date TBA).
•The demo will include both single-player and multi-player sections.
•The demo will be released in all regions where the game is "
And this:
"Hello everyone! It's going to be a Happy New Year! Mass Effect 3 will have a pre-release demo in January 2012. This demo will have both single player and multiplayer sections, giving fans a taste of what's to come on March 6, 2012. Be first to the front lines in the multiplayer section of the Mass Effect 3 demo! Redemption of the Online Pass for Battlefield 3 will unlock this early access. But rallying for war is just getting started - in late November / early December, BioWare will announce other ways for fans to engage the enemy with their friends
online from day one!
What are the details of the Mass Effect 3 pre-release demo?
•The Mass Effect 3 pre-release demo will launch in January 2012 (exact date TBA). "
So unless anything was said after this then the demo was suppose to be released/launched this month.