To my knowledge, Valve is currently using a hidden forum to work out bug reports. They've never had any public bug trackers in the past, have they? I guess the forum was the easiest way for them to get things rolling, though it definitely makes it hard to organize bugs. If you look at the public Linux Beta Client forum, un-authorized users have already taken it upon themselves to try to organize bugs into indexed posts.
Maybe we can push Valve to get a proper bug tracker up for when the expanded beta goes live.
now what I would like to know is when the next wave of invites are due AND when dota2 is getting added
seems to be an issue with the notification area at the moment