Hence the question of what is the M7′s job to be done. As part of an iPhone, it does not seem to have one. […] Perhaps this is why Apple chose to describe the iPhone 5S as “forward-thinking”. The M7 and the Touch ID are like research projects whose actual value will be realized at some future time, in probably different contexts.
M is for Mystery – Horace Dediu
An interesting thought from the ever inquiring Horace Dediu.