There are hundreds of different flashlight apps out there which had all sorts of bells and whistles. I like the plain and simple interface of Droidlight. This app just displays a simple bulb in the center of the screen, which when you touch it, it lights up and your flashlight turns on. It also has a neat little feature where if you leave the app open without the flashlight on and turn off the screen, when you turn on the screen the flashlight will turn on.