combining voice recognition and natural language processing with search to create a really smart way to easily find the things you want quickly. If you've already forgotten: It's kind of like Siri, except it works.
The glasses are designed primarily for those kinds of scenarios: research projects, testing rooms and simulators - where the thing being looked at isn't just a computer or tablet screen, which would be better served by non-wearable eye tracking like Tobii's EyeX. If you want to study what part of a person's face people look at in various social situations, for example, the Tobii Glasses 2 can tell you.