I think glancing out to sea and seeing who owns the ships and where they are going would be neat. Then bringing up aperture and shutter speed for my old rangefinder so I can take the perfect photo. Looking up into the sky and identifying the planes and birds and stars and planets.

Seeing people's name tags next to them, maybe with some recent photos from facebook.

All stuff I can do on my phone, but without having to take it out of my pocket.

And before you go all Luddite on me ... "That sounds terrible!" I actually rarely take my phone with me and 90% of places I go have no signal. So for me this technology is almost like magic (if they can make it work)

I would like to remove my TV and put a plant there.