EA have revealed that 1.5 million people have signed up to beta test Star Wars: The Old Republic at this point. No date has been set for when the beta test commences, and if you haven't already signed up you can do so at the official website.
Star Wars: The Old Republic is being targeted for release later this year, probably sometimes this fall. But, as we're sure you are aware it's one of those "when it's done" type deals.