BrickHouse Locator with Distance Alert

[Anonymous]

Has anyone used one of these? I saw the commercial for it during the Olympics last night, and it seems like a great idea. I tend to shy away from taking my two young kids (18 months and 3) to places where I would have a hard time keeping a close eye on both of them (like, for example, Clemyjontri Park). I want them to have fun and be able to run around, but I know I'd spend more time watching the little one for safey reasons, and the older one just isn't old/mature enough that I can be confident that he would not run off to another area of the park without telling me. But this seems like it would also be a good security blanket also for amusement parks, or even the mall too. I just wonder how well it works.