At a game industry do in Brighton, Jones outlined how APB, think massively multiplayer cops 'n' robbers and you're pretty much there, would seek to shape the world around its players.
Among the ideas was allowing players to create 'death tunes' that other players hear when you kill them in the game. Sounds fun, especially since the plan is players can feed in their own music via music-sharing website last.fm.
I'll be tempted to use Black Lace's Agadoo, although I think the reprisals would be justifiably harsh.
What would your 'death tune' be?