Are Cell Viruses A Real Threat Now?

Celpha writes "According to security firm F-Secure, a Trojan virus (Cardtrap.A) attacks Symbian mobile phone operating systems, attempting to infect users' PCs if they insert the phone's memory card into their computers. From the article: 'We expect to see more of this on the mobile front,' an F-Secure chief research officer said. Trend Micro issued a media alert stating it is a 'fully functioning' mobile threat. However, Antivirus firm Sophos slams the claim of this first example of a serious mobile malware threat as just plain bonkers."