Apple Thoughts: NightVision for the iPhone

"The iPhone's lack of camera flash makes it a poor performer in low light conditions but developers have been hard at work to make it better."

You can see how well it works from the video above. Not sure how often I'd have a use for it but it is only $0.99 USD in the iTunes Store. There are also several other options in the iTunes store for night vision type usage, varying from free to a couple bucks in case you aren't sold on this particular app.