POET Technologies Inc.

This is from their homepage about optical computing:

Digital computers are optimized for functions such as numeric calculations, but efficiently handling complex images can be vastly improved by the use of highly specialized computers that function entirely within the optical domain without the need for optical-to-digital conversions.

It is what Oogee meant by 'A'. So, unless you want to use your iPhone to track Stealthfighers it won't become a competition.

GLTA