Here's a great app that includes a Trace Route, Ping Plotting, IP Location and more for the IT professional but easy to use for anybody.

GeoTrace helps determine connectivity problems, weather it is due to an ISP, the Internet, or the web site.

Download from iTunes at: http://itunes.apple.com/us/app/id565669432?mt=8 to download or for more information.

I think you'll find this app very useful!