The World SF Blog has Borrowed Time, an absolutely marvelous story by Stephen Kotowych up for your (and my) enjoyment.
It deals with a defecting agents from a secret organization who collects (steals?) spare moments from people who don't use them - all in the name of survival of humanity, as time is a limited resources, and given the population growth we're going through it faster and faster, soon we'll be running out of it entirely...
Well written, gripping, and thought provoking. Telling from this short sample I'd say that we'll hear more, much more, from this writer in the future!