Since we received the 5.8 update and with it Wi-Fi access, I decided to try an experiment. I took my iPhone 5, running under Verizon's 4G network, and placed it in personal hotspot mode. I plugged it into my MS' USB port for continuous power, then connected the MS to my newly-created hotspot's wireless network. It works - and I do notice a definite improvement in the web browser's response time when I'm in the full 4G LTE area. Hope this helps someone else who wants to do the same.