In case you have not; I have used mine to check and troubleshoot wireless connections. Conduct wireless surveys of already installed systems for upgrades or new building additions. It also allows me to access internal network documents and servers on the fly with out always pulling out the laptop. And of course anytime you need unfiltered internet access you can always switch off Wifi and use the cellular network. Wifi speed is always faster than 3G when ever you need data or email access. I can't do it with Sprint, but if you have VOIP or Vonage you can make free data calls with out using your voice minutes.