Here's a flashlight app for the pearl that uses the LED: http://www.blackberryforums.com/gene...ends-free.html
Link to app is in post #2
You have to pay if you want the full app, but the flashlight is free and does not expire... and works great. Not as bright as the flash would be, but it does the job.
Use San Francisco's instructions(post #10) for using the side convenience key to activate the flashlight.
You'd be shocked at how well this works in a dark room, etc.. Better than a white background, IMO, as that light is more focused like a real flashlight would be. The light is projected MUCH further than light from a white background.
Hope this helps