I didn't know anyone wrote empathic yet... isn't that the app that automatically picks a playlist to match your mood?

LOL. Yeah I could implement it the way the Office Assistant window works in Windows... You select a Marvin Gaye tune followed by a Sade tune and it pops up a little dialog:

"It looks like you're trying to get laid tonight!"
What should I do?
(a) build a playlist of your favorite "in the mood" songs
(b) start GPSapp to guide you to the nearest unpopulated parking lot
(c) dim the display so you won't disturb your neighbors in the next car
(d) nevermind, I'm not trying to get laid, the wife is in control of the music selection tonight

An interesting concept...