The video recorder one works pretty well.. but is there any application that does it directly without having to go through the recorder?
What would be the difference? Either way you'd have to go and find the application and launch it or set it to a convenience key. If you just set the Video Recorder to have the flash always on, like mentioned, then all you have to do is assign Video Recorder to a side key or launch it from the main menu (it has it's own icon, no need to go through camera) and you'll have the light.