{Update! New List! New Post! See the new list of iPhone applications I actually still use in this post, from September 2009.]
For 99 cents I downloaded Ocarina, an app from Smule that turns an iPhone into a version of that ancient flute-like instrument. You press glowing “finger holes” on the touchscreen and blow into the microphone to play [Video].
That’s fun, but Ocarina does more than that. The app also uses the location software and a Google-Earth style globe to let you rotate the earth and listen to others play on their phones around the world. As they play one by one, visual images of the notes stream upward, as you watch from space. Around the globe, patches of glowing white show what are apparently concentrations of signals, particularly on the coasts of the United States and in Europe. One soloist sent a lonely tune up from an island of Hawaii.
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