I was in a meeting last week and someone around the table was using a really neat stylus with their iPad (not a Pro). He disappeared before I could ask him what it was. It looked like a really thin piece of charcoal with a tapered nib I think. It looked way thinner than most stylus nibs, and I couldn't see one of those disk type things attached to it. Anyone know what it might be? I'm based in the uk, if that makes a difference.