Selectel Wireless is now offering prepaid mobile broadband service. It's limited to Verizon 3G devices currently. There's a single plan that provides 5GB of data for $60/month.
Mobile broadband service is not listed on the Selectel Website, you have to call. It is currently available from at least one Selectel Online dealer, Bat Mobile Wireless, which is offering free activations.
Neither Bat Mobile or Selectel are selling devices at this time but there are plenty of Verizon hotspots available inexpensively on eBay. Just be sure you get a 2G/3G only (not 4G LTE) device, as Selectel can't active LTE devices. The Novatel MiFi 2200 (image) seems to be the most widely available model. Instructions for setting up the MiFi 2200 on Selectel are on the Bat Mobile Wireless site.
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