There’s a lot more then natural language AI, My consideration of AI would also deal with the environmental interaction, though for interaction with language the turing test, would be a good one,

For probes and items it has to do with recognizing and learning environmental issues and problems, knowing how to work around an obstical, other then (Hit wall, turn left or right, continue.) which would take it into (looking before one leapt) and seeing if indeed left is better then right or the other way around due to additional issues.

I think the most under rated AI is used every day by most of the younger generation in the multi-Billion dollar industry known as the game industry.
The cars you race against, the enemy units you fight, the whole deal of how the game is good or bad is built on how the (Computer guys) know how to pin you down flank you and take you out, before you can do the same to them. The RTS games show a decent amount of AI when they strat against you and cut you off from resources and overwhelm your defenses to eliminate your base. I think some of the strongest AI in exsistance is in games, though no one even thinks of it as AI, but just entertainment.

AI is in my book not one whole thing but any one thing a living creature can do, which is done by a non-living thing. Granted a computer can at this point outthink an ant, but we tend to think of only things on our level.

Whats your take?