api.ai is an API which offers voice recognition, natural language processing and text-to-speech. It allows users to integrate speech interfaces into their products.
ReKognition is an API which offers facial, object and scene recognition.
Through the combination of both API's, this project aims to create a Mathematica-based interactive interface, through which a user can recognise/detect faces in a photo using a variety of voice commands.
Here's a blog post about this project.