I set the video camera as my right convenience key and use it when I can't see the keyhole or some dark areas like the bottom of a vehicle for missing stuff. It's much more easy and brighter than the apps out there. I hit the right convenience key and have a flash light at the ready for me and it doesn't use memory either. I've tried berry torch and others like it and they don't lighten up better than the built in flash does.
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I co sign for the 20th time on the Video Camera. I use the space bar that takes a little more time but sometimes (not often) I actually use the Video camera for a video camera.
I found and app, from pinstack i think, called Flash On. It essentially starts up the video camera, turns on the light, and covers it with a white screen. It works fairly well and starts with one click. Sometimes it doesn't shut the video camera down but at that point its not hidden anymore so you know to shut it down manually. Works great for free.