NCSoft announced yesterday that the universally acclaimed MMO, Guild Wars 2 is now available in beta stage for the Mac, for anyone with an active account.
Despite being in early phases, the client allows Mac users to connect to the same servers as PC users. All future updates will be available simultaneously for both platforms.
ArenaNet are intending to optimise the game for as many systems as possible, as well as supporting Lion and Mountain Lion.
No release date has been finalised as of yet.
More information is available in the FAQ.