Nokia 808 PureView serious scratchtest
This Italian guy from ForMobiles.info definitely has more gust than I do. It's a serious scratchtest on the display of the Nokia 808 PureView, using forks and several other agressive objects. It's all in rapid Italian, but you'll see what he's doing and the device is not suffering at all. I'll trust what I see and won't try this at home.