We like the idea of NetZero's budget-friendly mobile broadband -- just not its use of Clearwire's small, aging WiMAX network. The provider should soon take care of that problem through new MVNO agreements with Sprint and Verizon. The five-year Sprint pact gives NetZero both LTE and EV-DO; the Verizon deal serves more as a safety net, supplying EV-DO alone for three years. Both agreements only take effect in the
