According to a news post on the official World of Warcraft site, the Battle.net Mobile Authenticator is now available for more than just the iPhone or iPod touch. AT&T, Cellular One and Sprint users can now download the application on brands such as Blackberry, LG, Motorola, Nokia and others. T-Mobile and Verizon do not appear to be on the list of compatible providers at this time.
While iPhone and iPod touch owners can download the Mobile Authenticator for free, it's going to cost everyone else 99 cents. For those who don't know, the authenticator generates a one-time password to be used in addition to your regular username and password for extra security. For more information, check out the FAQ or read the full post after the jump.
You can discuss the application in this thread in our general forum.