Even if it's not a root exploit, though, there's no cause for celebration. Handy Light shows that the App Store process can sneak major, prohibited functionality onto users' devices in the guise of a clearly useless and trivial app.
Any competent iOS developer should be able to think of a handful of ways to sneak past Apple's approval process if they felt like it and had sufficient reason to do so.
Any competent iOS developer should be able to think of a handful of ways to sneak past Apple's approval process if they felt like it and had sufficient reason to do so.