Some genius just got a gigantic check for inventing a phone that changes colors depending on the mood of the caller, allowing Asperger's sufferers to pick up on social cues.
I imagine this could be useful for all of us though. Especially in those awkward interactions with women. "So you DID sleep with her?" What color is the phone? Better yet, maybe the phone should tell us how to respond. "Well, I never technically fell asleep!"