In November when this change happens customers enjoying unlimited 4G WiMAX will no longer have that luxury and will be billed $.05/MB for going over their limit. This will effect anybody using a 3G/4G Mobile Hotspot or USB Modem.
More details are available here - Sprint Removing Unlimited Data from Wireless Modems, 4G WiMAX Included
More details are available here - Sprint Removing Unlimited Data from Wireless Modems, 4G WiMAX Included