At the behest of irreverent gamers everywhere, Volition has revealed that they are planning on including the Ostrich Hammer as an actual unlockable weapon for the upcoming Red Faction: Guerrilla!
Kotaku reports on the announcement:
In what some are calling the winning video game ‘prank’ of April Fool’s Day 2009, Volition released a hilarious video on Wednesday revealing the Ostrich Hammer, a brilliant response to NeoGAF comments regarding an early batch of Red Faction: Guerrilla screenshots. Brimming with excellent comic timing and one of the best beards ever, the video caused many of our commentors to declare the game a day one buy, as long as the Ostrich Hammer was included. Volition is going to be holding you to that.

A wielded in-game Ostrich briefly takes flight
Now that is customer service.