remote controll lifeguard

http://www.hydronalix.com/
http://www.popsci.com/gadgets/article/2010-06/invention-month-robot-lifeguard

[youtube]VzLknbVZiCg[/youtube]

I like this idea. I didn't watch the video yet, since I'm at work, but I like the concept.

They could hang out in pools and have smart systems that somehow detect drowing splash patterns and then head over to help.