Absolutely, though the fine-grained ness of that interaction won't be very good for a while. People are working right now on replicating some classic BCI parad

Absolutely, though the fine-grained ness of that interaction won't be very good for a while. People are working right now on replicating some classic BCI paradigms with these consumer headsets (i.e. motor imagery and the P300 speller). These are slow and require training to use, though. What I think is more promising in the near term is using these devices to passively influence software. Like in Muse's app, EEG could be used to determine whether you're engaged, distracted, fearful, or frustrated. This affective data could lead to a whole host of interesting possibilities in gaming and health.