The money quote:
“...when’s the last time you actually plugged your iPhone into your computer?”
Another is how are they going to get their "weaponized Trojan" past Apple's anti-Trojan detectors. There are only seven families of OS X Trojans with that are candidates. . . and OS X will recognize every one of them and warn user if they download an app with them in it, warn them if they attempt to install one, and warn them again if they attempt to run it. It's FUD.