Dynamoo writes "The good news is that Microsoft have announced free anti-virus software for consumers, dubbed Morro, available late next year. The bad news is ... well, exactly the same. Although Microsoft's anti-malware products are pretty good, this move could drive many competitors out of business and create a dangerous security monoculture; major rivals will be lawyering up already. On the other hand, many malware infections could be prevented even by basic software. So is this going to be a good or bad thing overall?"