Shazam Now Tweets, Maps Your Music Journeys

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Shazam—an application that listens to songs playing out loud, telling you its name and artist—is probably my favorite iPhoneware ever. The latest version just got a lot better for music whores like me.

This update allows you to send electronic postcards to friends, as well as sending tagged songs to Twitter. But besides allowing you to spam followers with your latest music discoveries, my favorite new feature is the song geolocation: Now it can display your music history in a map. Great when you wake up in a place you don't even know and can't even remember what places you visited last night. [iTunes App Store]