I would argue that it is. I have AR apps on my phone which I never use because the startup requirements (pull phone out, turn on, unlock, start app, wait for GPS and fiddle about a bit with inaccurate accelerometer) are too high.
Reducing that requirement by having it on your face is a fantastic first step. We have no idea whether the next Glass iteration will be stereoscopic, or cover your field of vision or what. It's that market preparation I am excited to see.
>The Oculus Rift certainly won't be worn all the time.
Of course not, but "always on" is not a very useful feature for VR. It's an incredibly useful feature for AR. Oculus Rift is not a good candidate in any way for an AR platform, since camera pass through to VR is not an acceptable replacement for seeing the world with your actual eyes.
Reducing that requirement by having it on your face is a fantastic first step. We have no idea whether the next Glass iteration will be stereoscopic, or cover your field of vision or what. It's that market preparation I am excited to see.