There are some left here: http://www.zam.com/giveaways/mechwarrior-tactics.html All you have to do is register to the website and you got to the key.
Is there a place to talk about this game with people who are in beta? I didn't actually READ the disclosure statement so i'm running under the assumption that it's pretty close if not the same as MWO
First rule of the closed beta: You don't talk about closed beta in public or the lawyers will eat your soul and wallet. So no, unfortunately.
