ChkWebSpeed is FREE utility that reports the real download speed of any website’s page on your Mobile device over any wireless (WiFi or Cellular) network.

Sidenote: At the time of posting this program has been marked as beeing freely available without any costs. As this program is hosted with the AppStore the status might change. Authors like to publish their programs for free and / or for promotion purpose and then start charging.

http://appshopper.com/utilities/chkwebspeed