Those invited to play are free to take screenshots, movies, or stream the game content
Blizzard Entertainment announced that the World of Warcraft: Mists of Pandaria beta test has started today - over the course of the test, Annual Pass holders, press, fansites, friends and family, and opt-in beta testers will be invited to participate. This first phase of the beta focuses on the 1-10 starting experience for new Pandaren. High-level content as well as template characters will become available in future beta updates, but you can still copy over your own high level characters now if you'd like to test the new talent system.
Players selected to participate in the beta test will receive an email invitation directing them to download the beta client directly from their Battle.net account. Be aware of phishing attempts - if you're unsure whether your invitation is legitimate, please log in to your Battle.net account to verify that there is a Mists of Pandaria beta license attached.