Never worry where your kids are again, thanks to new shoes with GPS built-in. A new line of sneakers priced at $325 to $350 will allow users to locate the wearer anywhere in the world with a press of a button. The wearer must activate the GPS by pushing a button. A wireless alert gives the location in a 24-hour monitoring service that cost $19.95 a month. The GPS shoes are to hit stores next month.