If the thing had good enough heading and position information, it could overlay detailed information on the real world. But it's not that good. It's just a smartphone display.
Too bad smartphones don't ship with GPS receivers, accelerometers, gyroscopes...
How on earth do you reach adulthood without knowing what a dry wine is?
Too busy with his furniture hacks?
Act II: Rooting and Google Play
"news for morons who couldn't find their ass if it wasn't attached"
Fear not...there exists a clamp hack for that.
"Don't try to outweird me, three-eyes. I get stranger things than you free with my breakfast cereal." - Zaphod Beeblebrox in "Hithiker's Guide to the Galaxy"