If you're hankering to get your hands on Battlefield 3 as soon as possible, or are hungry for more after the recent alpha trial, a beta will be starting next month if you haven't yet heard.
What you probably haven't heard is the beta will be open to all, meaning PC, 360, and PS3 players alike, and not just those who pre-ordered Medal of Honor Limited Edition (a misleading move on EA's part, to be sure). If you did, however, or if you've pre-ordered on Origin, you'll get a 48 hour head start.
Exact dates are not yet known, but we'll keep you posted. If you still have unanswered questions, ask in the comments or hit the source for a handy FAQ on that and pre-order bonuses.