What about that life alert thing? They shouldn't just advertise it for senior citizens...I'd like to be able to just push a button when I'm in trouble...cell phones can be a hassle when you're in a panic. If they could make one of those life alert things with a signal that gives off your location that would be awesome....especially for kids.
I'm not too fond of the Life Alert and services like them. I had about two years of experience with one that was installed for my grandmother. She fell six times, and had to lie there for over an hour, with the paramedics HQ less than a block away. I can imagine the wait would be longer out in the boonies where I live. The cell phone is much more to my liking - I wear it in a little pouch around my neck that I made (I can crochet like a madwoman).
I've always had an idea for a GPS-assisted device that would automatically notifiy anyone you programed into it (email, telephone, pager, etc.) if you stayed in a fallen position for over two minutes or some preset time. The technology exists - it would just be a matter of putting it all together.
Oh, I also take my amateur radio walkie-talkie with me when I go out, and if anyone is communicating on our club's repeater, I announce that I'm going out, and when I come back in. I do this with my dad as well - I notify him when I leave home in my car, and when I arrive back at home.
Now, why don't I call my hubby? Well, when he's at home, I don't have much need of these safety practices (he's a big, tall guy anyone would think twice at messing with), but he works 12 hour days and commutes 2 hours a day. So I try to be as self-sufficient as possible.