Diablo III Game Breaking Bug Found

Diablo III was released today and with any new game at launch several bugs have been discovers. Among those there is a game breaking glitch which you can try to avoid:

To activate this bug you simply had to interact with the Templar follower early in the game then you give the Templar a shield and you get an Error 3006.

A bug.
When you do this you can't even log back into the game after you're kicked out until Blizzard fixes this glitch! An update is confirmed to come soon though, among all the many smaller fixes that have been coming out since launch.

It's this what a beta is for?