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Since there is 2 cameras on the google glass (one that can record what you see, and one that track your eyes). Do you guys have any clues if it's possible to use the "eye tracking video" as an input ?
For sure, we'll have more info when the GDK is out... but I was wondering if it can be coded like a 2 sides camera on a traditional phone ?
What do you think ?
You cannot directly access the IR sensor which is used for the wink, etc, however there are certain eye gestures that you can capture but they don't provide a means for eye tracking capabilities.
For more info, take a look at my response to a similar question.
Some people are doing some cool stuff with eye tracking + glass via an add-on 3D printable apparatus and pupil tracking software. See more here and the vid here.