The Windows edition of the Mirror's Edge: Pure Time Trials Map Pack is now live on the EA Store, for some unexplained reason delayed over day after its release was announced. Here's the official skinny: "Time Trial is a popular mode in Mirror's Edge that challenges players to find the fastest route across various maps. Players can upload their best time to the Mirror's Edge leaderboards for their friends to download and compete against. Players can see their friend's "ghost" run as they race their way through the course to the top of the leaderboards." The map pack is a $9.99 purchase, only available via digital distribution, and it should be heading to other online outlets soon.