Check out this mobile encyclopedia that comes in the form of a transparent slide - all you need to do is frame it over an object, like a building for example. You then touch a floor of the building on the slide and it will automatically zoom in while furnishing you with full details of that building. Of course, this is but a concept at the moment and chances are you’ll need to be in an urban environment where WiFi networks are aplenty for it to download all the necessary information. I guess it will take many, many more years before something like this materializes, but it is definitely an interesting idea. A walking Wikipedia, so to speak.

Source: Tech Chee