Didn't find anything on this on any other forum so I decided to create one. My galaxy s3 screen seems to respond to my touch when I'm literally not touching the screen. My finger will be above the screen by a few millimeters or so and I can scroll up and down pages. Is this some kind of proximity sensor? It seems very specialized and possibly battery intensive. I think its very cool but I've been having problems with my battery lately so if this is causing it to drain I'd like to be able to disable it. Anyone else experience this or at least know what I'm talking about?