We compare two USB cards that Sprint & Verizon offer, the Compass 597 and the UM175. Both cards are Free at MoreMobileInternet.com
MoreMobileInternet.com compares the UTStarcom UM175 and the Novatel USB727 USB Mobile Broadband modems. See which one best fits your needs. Both are Free at More Mobile Internet.
MoreMobileInternet.com reviews the UTStarcom UM175 USB mobile broadband modem.