According to this article from CNET, it took Apple less than a day to change their tune after posting a note on their support web site that yes, maybe it’s a good idea for Mac users to run anti-virus software. Considering that the Mac isn’t invulnerable to software viruses, it’s strange that Apple would back-pedal like this. Still, immunity to the multitude of Windows-based malware and software viruses is a big selling point for Apple. With the busy Christmas shopping season now upon us, one can only wonder if Apple’s marketing team might have had something to do with this abrupt about-face.