From DSC:
I’ve been hoping that Steelcase would move towards implementing their puck-like devices — from their  MediaScape product line — on tables throughout a classroom…whereby these pucks would be wireless and whereby students could plug in whatever device they brought to class with them, and then hit the puck to begin “playing their media for the classroom.” No pauses, no interruptions to the flow of the class.

Along these lines, check this out:

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polyply1

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polyply8