[le-mark]

I can see the appeal of this, my kids are too young to roam yet, though. I'd like a smaller form factor though, like a wrist band.

[majewsky]

Yeah, on the website, it shows a child carrying this widget in her pants' pocket, and I can immediately picture it falling out of the pocket unnoticed. A wrist band would probably be ideal.

[ryandrake]

I can't help but picture a house arrest ankle bracelet. Sadly, given the current state of parent-paranoia, I agree with the others here that this device would probably sell very well.

[r00fus]

I concur. All I'd really want actually is a rugged watch with a a) reliable beacon, b) timer and c) possibly limited texting function (which could function as an alert) - in order of priority.