After waiting nearly 3 months for the Play Store to restock the Nexus 4, my barely 2 week old device was resting on a not-perfectly-flat surface, and the motion from passing footsteps caused it to slip off said surface and smash.
For those who do not have a Nexus 4, be aware that the glass back of this device is coated in an invisible to touch and feel, yet extremely effective and absolutely ever-present lubricant. This device will eventually slide off any non horizontal surface.
Unlike so many iPhone screens that crack, my screen no longer responds to touches, so it is completely boned. I can't even relegate this as a testing device.
Personally, I can't help but seriously question the wisdom of giving the Nexus 4 a glass back. Sure it looks OK, but as well as making it nigh on impossible to tell which way the device is facing when pulling it out of one's pocket, this slippery, sparkly back directly resulted in my device shattering. No one forced the Android team to go down the glass route. This was a conscious design decision.
I can't help but think of this remark Larry Page made in Google's most recent earnings call:
"When you drop your phone, it shouldn't go splat."
Agreed. But intentionally designing a slippery device made entirely of glass sure seems a strange decision by a company employing many of the smartest people on earth.