How'bout that huh?
![:D](http://public.gamedev.net/public/style_emoticons/<#EMO_DIR#>/biggrin.gif)
[font=sans-serif][size=2]Augmented reality (AR) is a term for a live direct or an indirect view of a physical, real-world environment whose elements are augmented by computer-generated sensory input, such as sound or graphics. It is related to a more general concept called mediated reality, in which a view of reality is modified (possibly even diminished rather than augmented) by a computer. As a result, the technology functions by enhancing one’s current perception of reality. By contrast, virtual reality replaces the real world with a simulated one.[/font][/quote]
I'm not sure how fun "the floor is lava" would be -- at least for any extended period of time -- but I think there's definitely some potential for fun games using an AR approach and/or inserting game-play into the everyday world with things like owl mentioned.
Another thing that comes to mind -- although no computer or electronic aid is currently used -- is a zombie game played in my local area: The game is played constantly over a week or so, although for safety and sensibility reasons work-places and educational classes are exempt from play. Players identify themselves by a bandanna loosely fixed to the upper arm, and may use weapons such as un-modified Nerf guns and thrown marshmallows to defend themselves from zombies. A few small number of players are designated as zombies from the beginning and have the goal of non-violently obtaining "human" player's bandannas, at which point that player joins the ranks of the zombies. A zombie hit by a human players weapon is "stunned" and may not participate in the game for the next 20 minutes. Simple but effective game-play in a wide outside area, and anyone around you could potentially be a player.
- Jason Astle-Adams