Intego is launching an app for the the iPhone and iPad, VirusBarrier for iOS, that can scan some of the files on iOS devices for viruses and malware. The app is geared at preventing an infected file from traveling between machines with the iPhone as a conduit, since iOS in general has had the same resilience against malware and viruses as its sibling Mac OS X -- unlike its closest competitor Android, which has seen spreading malware and security issues.