Whiteboard
Not only can you draw with others collaboratively, but those drawings can be displayed on a projector.
PaperDesk
Project you notes.
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Expedition – VGA, Composite, Component Out Web Browser
A browser that will display on VGA.
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Air Sketch: Interactive Whiteboard and Wireless Presentations
Other programs can send to this app, then the files can be displayed, annotated, and projected. Would be nice if there was an ability to add text.
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Netflix
Like most video on the iPad, the video from Netflix can be displayed on the projector.
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