Careful what you say – that iPhone over there could be a live microphone.

Which is to say there’s a new, free iPhone app called Soundbiter designed to monitor the world’s audio and upload it to Twitter and Facebook with the push of a button.

When running, the Soundbiter app is constantly recording, keeping an audio buffer of a minute or so. Then when you hear a good joke, a fine guitar riff or a politician’s slip-of-the-tongue, you hit the apps’s only button, which saves the last 60 seconds of sound. From there, it’s a cinch to edit, upload, title and publish the sonic snippet to Twitter or Facebook.