Description from the AppStore: Light Kit is an app that turns your iPad into a host of different studio lights. It's the simplest way to get great looking light and reflections on miniatures, packshots and pictures in general.
LightKit 1.0 comes with 12 different lightsources that you can pick and choose from.
AppStore Link: LightKit - Price: £2.99/$4.99/€3.99
Editors comments: A nice idea, but I'm not sure I would want to put excess wear on my iPad screen.
For those interested, LightKit is currently on offer priced at £1.79/$2.99/€2.39, and although I can still see little use for this app, here is the developers latest video demonstration.