Neuroware proposes mating consumer grade brainwave-detection devices with other appliances, starting with your smart phone. This concept video demonstrates a headset that automatically records when it detects an emotional reaction to what the user is perceiving.
Honestly, what intrigued me most about this wasn't the EEG capacity of the headset, it was the rather bizarre design decision to place the phone on the side of the person's head, where passersby can see it, but the user can't. It suggests that the user's emotions are part of the aesthetic of the device itself. In contrast to Google glass, which was perceived as a creepy overreach of privacy boundaries, this device exposes the user, displaying their internal state for all to see.