If Dai Zovi seriously contends that the x86 architecture is a significant, unaddressable security risk to the smartphone industry, he's needs to release more details to show it.

Pretty good spanking by Ars. Hypothesizing that cell phones might be more insecure if they switch to a more well known chip design is most definitely not newsworthy. Perhaps there is something more here he cannot talk about but on the face of it this seems like of silly to announce.

Researcher: ARM a safer bet than x86 chips