This thing is ridiculously noisy, that's why they needed the music to cover the sound, imagine the noise a Dyson vacuum cleaner makes. Now obviously its not as noisy as that, but it's still considerably more than your average desk fan.
That being said, who cares, it looks the shit and does the job far better than a standard fan.
Thats stupid. Dyson also recently made a thing to replace the hand dryers in bathrooms. Now that is an awesome idea, because those hand dryers suck and don't work. Fans however, do work, and there really is no need to replace them.
I looked at the website, and still don't get it. They said inside it has technology similar to turbos and jet engines...which have blades though? Then it shows some aperture thing that accelerates the air. I guess its cool.