Have become the invite mail, have logged in to account, and then the SC II Beta Game where added. i tried it to add with key (because first i didnt see that the game was added) but then it come that i have added already, so my question;

can i gave this key know to a friend and he can play too and my game is already there or is this my key for problems if i lost - or whatever - my added game? or would it say to my friend "this key is already in use"?

ty for info.

Yes, there were different ways to get into the beta. The events that people attended or contests they won (these usually got a key in the mail) or through the Opt-in, that got your account flagged.

So if you happen to have your account flagged and get a key, you can give the key to a friend. Playing with people you know is always most fun!