I can confirm what Entropy says, that is the word on the beta forums. They are going to start inviting groups for weekend Betas. As far as I know they will be on their own separate servers though. Another round of beta invites went out today. I don't think i know anyone who got in to play with me though.
The game really is not as bad as people say it is or as you've heard it is.
From a purely MMO fan perspective, and setting my love of Star Wars aside. It is not a ground breaking MMO, but, the story driven classes add a lot to the usually generic formula and the fully voice acted quest givers add to the immersion. The flashpoints are far better than any instance I've played in any other game due to the group choice wheel moments changing the paths and things you fight in most cases, there are 2 paths in the flashpoints.
Quite enjoyable.