Have you noticed, apple hasn't released any new ads to attack windows for a while, I guess because windows 7 received pretty good reviews, it's pretty hard for apple to find things to attack. To be honest, I'm sick of those ads to attack windows in terms of security. Mac is just as bad as windows in terms of security, if not worse. For last couple years PWN2OWN contest, safari on mac is always the first one got hacked, it didn't even last 10 seconds. I'm not a windows fan, I hate windows in the fact. But I just feel Apple sometimes just misleading people to believe mac is a safer platform. The only reason we don't need a antivirus software on mac is mac has very small market share, and it's just not worth to write a virus for mac.