[VR4ever]

I have the SERO plan with Sprint and tether with it. I've downloaded files/streamed video with it. I know I've gone through a good amount of data with it. I use WMWifiRouter or USBModem. I'd use it more often but my high-speed at home has a must faster upload rate. However, I use way more data through GPS in Google Maps. I've used as high as 2MB/s before messing with the satellite and traffic views, zooming in and out while moving on the highway. I've never received any additional charges on my bill. As long as you make the right registry edits, I doubt you'll get caught for tethering.