There is an app for everything on the iPhone. Many of the apps are for things that I never really needed or wanted though. A strange new app from GE has surfaced that lets the user take a picture of a room of their house with the iPhone camera.
Once the pic is taken the app then lets the user apply lighting filters to the pic to get an idea what different light moods would look like. If you find a lighting mood that you want, you can get a list of the bulbs to get to set the mood.