Saw one of these (Link HERE)in the little magazine that always falls out of the Sunday paper and being a sucker for gadgets thought I would buy one and try it out. User trial now complete and I can report that it actually works! Will be useful on Ex etc when it's hard to get your fone charged and the torch is ok, similar to the LED head torches. Doesn't last for ages though. Useful for emergencies etc and no need to worry about batteries. It gets pretty boring winding it up though and 3 minutes is a long time winding the little handle. I charged 1 bar on my fone after winding for about 5 mins. Thought it may be useful for the more adventurous types among us!