Just got my Limited Edition box today (finally!! but... it's not as if I couldn't play). While unpacking, I got the CD case out to rip the soundtrack, I saw the reg code is not the same as the one I have in Impulse. My first thought was "YAY free copy for a friend!" but then... I thought I'd be honest with a company that has shown such honesty and candor to it's customers(including, most notably, myself) and ask on the forums.
Will that key work? Is that an error? 
Is the key needed for later?
