Apple today released an update for Find My iPhone, adding a newly redesigned iOS 7-style icon. The new icon was first introduced on the iCloud.com beta page, which was updated in mid-August with a new set of iOS 7 icons.
It appears that the newest version of Find My iPhone may have been released prematurely, however, as the update gives an error message to anyone who attempts to use it without a registered developer account (paid or free)...
Read the full story here... Source: Mac Rumours