If I decide to get in on this technology, I'll make sure the frame of my house is welded steel. I thought I saw someone advertising this as an ultrasonic nail gun... and being in California, I would rather not have something in my basement or attic that basically simulates yet another earthquake!
The car idea is crazy too... I already hear enough trunks rattling like hell. But I guess if they do make it for a car, I can just tune in to the same station they are listening to while stopped at the light, lean my seat back, put my right hand on the top of the steering wheel, and act like it's coming from my ride.