EDIT: I was under the impression that playing the Mass Effect 3 demo unlocked items for the full Mass Effect 3 game. Now it sounds like there's another demo out there that unlocks ME3 stuff. I'm a little confused. Sorry for being out of the loop, but what's going on?
Also, I couldn't access the multi-player part of the Mass Effect 3 demo - something about not having access to the online section. Does anyone know why I might be locked out? Very strange. I played through the single-player demo and loved it, but wasn't allowed to play the multi-player.