The downloadable Mirror's Edge Time Trial content has turned free on the PlayStation Store.
This unexplained phenomena occurred a few days ago, according to vg247, and the previously seven-quid bundle has remained free ever since. That's not the case on Xbox 360, however, where the extra Time Trial stages still cost 800 Microsoft Points (GBP 6.80 / EUR 9.60).
Mirror's Edge Time Trials present an airborne archipelago and challenge you to run and jump and puzzle your way to the finish as fast as you can. They forego the forgettable story and flimsy combat of the main campaign too, and focus on the pure and exhilarating concept DICE built its beautiful game around.