This has been a recent subject of discussion in my fire house.

It's a lovely idea, really, but don't think that it's going to do a lot of good in the moment of crisis.

If you're very ill or critically injured, the last thing we (paramedics and firefighters) are going to do is muck about in your cell phone looking for information. Someone in the emergency department might think to try locate your cell phone, then try to open the address book, but that's going to be low on the list of things to do.

If you're really concerned about notification please wear a Medic Alert bracelet or, as a distant second, put a large card bearing your critical information in your wallet.

There simply isn't time in an emergency to figure out the features of some else's cell phone.

ICE is like chicken soup, it couldn't hurt, might make you feel better, but probably has little bearing on outcome.