FreedomPop offers its factory-refurbished FreedomPop Freedom Hub Burst 802.11n Wireless 4G Router/Modem bundled with a 11GB Data Plan 1-Month Trial (10GB plan + 1GB plan) for $19.99 with free shipping. (The banner says 10.5GB of data, but you actually get a 1GB bonus in-cart, rather than a 500MB bonus.) That's tied with our mention from three weeks ago and $30 under the lowest total price we could find for just the modem new elsewhere. It features WEP, WPA, and WPA2 encryption. FreedomPop Home Premier is a premium service which includes enhanced support, usage alerts, and secure internet. A 90-day FreedomPop warranty applies.
Note: The trial subscription begins once the item is shipped. Be sure to cancel your subscription before the end of the trial period, or you'll be charged $21.99 every month thereafter for 10GB of bandwidth.