Hidden in a Google Glass APK, Android Police has discovered a raft of voice commands that may be implemented in the future.

The latest software update (XE10) for Google Glass landed last week for anyone lucky enough to have gotten their hands on the device, bringing transit directions, links in notifications and profile pictures in messages.
That's pretty neat and all, but under the hood is where the best stuff is. Android Police had a poke around XE10's code and found a bunch of features that haven't been implemented yet.
The features fall under the GlassVoice APK — the software that handles the "OK Glass" voice commands that allow you to use Google Glass by telling it what to do. The list is pretty interesting:
Add a calendar event
Call me a car
Capture a panorama
Check me in
Create a 3D model
Find a recipe
Learn a song
Play a game
Play music
Record a recipe
Remind me to...
Show a compass
Start a bike ride
Start a round of golf
Start a run
Start a stopwatch
Start a timer
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Tune an instrument
Some seem pretty straighforward, such as "Play music", "Capture a panorama" or "Add a calendar event", but we were particularly intrigued by "Tune an instrument" and "Create a 3D model" — the first because it means not having to wonder where we might have left a tuning fork and the latter because it could imply that Glass may have the ability to build a 3D model of a real-world object by walking around and scanning it with the glasses. Maybe.
Also tucked away inside the eye-control folder, called Gaze, was a new command called "double blink". Eye control has yet to be implemented too, but features such as "wink for photo" sound particularly promising.
Head over to Android Police for the full teardown.