See all the connections you have around.
An app that overlays your LinkedIn connections on the real life camera view of the world. You just point the camera at a spot and see who of your connections is working in that direction (within a certain distance.) Move the camera around and see information about everyone who is around you. See their picture, name, and place of work. Click on them and get their profile and directions for getting there.
If you walk almost anywhere, you will see plaques celebrating and informing you of interesting people and facts regarding many places (buildings, parks, etc.) There are much more of these than you see on these plaques and many a place where there is no plaque even though it has an interesting history.
An augmented reality app that when pointed at such a place gives you a list of all the interesting things that happened. Famous people who lived there, historical events, etc. You just point it at a building or even a few buildings, or a whole park, and see the list pops up on the screen beside the place you point at. You can them click on any of these to get many more details and the story.
You are stuck. You need (but don’t know how) to replace the doorknob, or the air conditioning unit’s filter, etc.
An app that uses the smartphone’s camera to identify the object you are dealing with, and shows you layered on the video feed from the camera how to do the task you need.
You cannot click on a word in a real book to get more information like you can in an ebook reader.
By wearing an augmented reality device (like Google Glass) that can also visually track what you’re doing (like hand gestures), you can simulate the act of clicking on anything in a book and see more information about it projected on the page you are reading.