A glimpse at CastAR
Jeri Ellsworth is the former Valve electrical engineer responsible for the mind-bending awesomeness that is this Commedore 64/bBass guitar hybrid (watch her play it at around 2:15 in the video).
Her latest offering is CastAR, a light-weight augmented reality headset that can also be transformed into a virtual reality headset. CastAR is still in development and is the first offering of a startup called 'Technical Illusions' that partners Ellsworth with veteran game programmer Rick Johnson.