Is there an app for that?

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My 13-year-old fact-quoting Asperger's egghead has found an app called Cool Facts.
Which is just that: an unending collecting of cool facts.
Its the last things he needs. He is already a storehouse of arcane trivia, a Jeopardy champ in the making.
With the iPod Touch in his hand, he never shuts up.
What he needs - what all kids with Asperger's need - is as an app to guide them through reciprocal conversation.
Is there an app for that?
There's certainly a market.