Hey man, my band and I worked a long time on that song.

The glass is laminated to the touch sensor, so that's going to help it hold together, but yeah, it was pretty remarkable seeing it deflect 2 inches. I watched the video for the first time earlier this week.

I'm really hoping that in the next iteration they can mange to get the LCD right up against the glass so it doesn't look like there's a small gap. That's how the iPhone's screen is put together and the effect enhances the appearance significantly. Or looked at a different way, it makes the glass less apparent, as if you're interacting directly with the pixels.