Comment by Xelbair

While their end goal is pretty clear(brand loyalty, profiling).. i doubt that it will come to pass with our current tech.

Lets face it - IT professionals do not trust such systems, nor use them - they are inferior to any type of input mode at the moment.

Most normal people do not care about them, nor use them.

There is vocal but relatively niche group of tech enthusiasts who are really into it, but they are already a brand loyalists.

On a side note - the whole concept of brand loyalty is completely idiotic from consumer PoV. There is no merit for the customer in it.