Apparently, there are some people who like to play synth sounds or sampled instruments in using a wind controller. Lucky that Akai have just announced the new EWI USB, which gets you blowing using a USB connector directly into your computer for some hot MIDI action.
Comes with a Garritan bundle of sounds to get you started.
Just dont suck, or you'll end up with a mouthful of hard drive or worse.
Available now for $499 US