Go Tell Blizzard You Want To Play The StarCraft II Beta

Blizzard has opened up the opt-in process for the upcoming beta for StarCraft II. This manifests itself as a new section in the Battle.net account profile pages called "Beta Profile Settings." In this section you'll download an application that takes some hardware readings, uploads that profile back to Blizzard, and flags you as the type of person who wouldn't mind playing StarCraft II before it comes out.

Of course, there's no guarantee that you'll be selected to participate, and there's no hard start date for the beta. But Blizzard's posted up a FAQ on the process that you should probably read. Especially this part about needing to own games before being able to sign up: