Want to know where the Wi-Fi is? Check out Jiwire Wi-fi Finder, which lets you use your iPhone to enter your location and then displays a list of Wi-Fi hotspots. Choosing a location from the list brings you to a screen where you can get more information, view the location on Google Maps, or call the location immediately. We especially like the ability to only search Wi-Fi locations for free.
iPhone link: http://iphone.jiwire.com/
Web site link: http://www.jiwire.com/