Air Scanner is an App I discovered from a Facebook ad of all places. It allows users connected to a Wifi to easily turn their iPhone into a mobile document camera. The app provides a numerical web address that users can type into their browser. Within the browser, whatever the camera is showing will appear within the browser window. There is also an option to freeze the image if need be and turn on the camera's flash.
I could see Air Scanner being used by teachers to showcase student work from the desk or students could use the App to zoom in to presentations that were created on a Poster Board. This is a free method for teachers to get a document camera and not be limited to a single location in the classroom.
