Swiss-Army Cell Phone?

I have been interested in the long list of gadgets that the cell phone has subsumed. Here's an idea for another function to add to the cell phone: an LED flashlight. No, definitely not a major "game changer", but it could be kind of convenient, from time to time. Perhaps not worth the space and expense, but who knows, there might be use cases for it.

3/18/2010 Postscript: I have found this feature on a phone in the wild. Ironically, it is on the cheapest phone in our household--a $20 pay-as-you-go phone that my son got when he broke his real phone.