Sprint changing its tethering plans, no more 5GB plan for $29.99 a month
When a customer receives a notice that he has used 100% of his monthly data allowance for tethering, the customer will have the choice of having the tethering service suspended until the next billing cycle starts, or pay the overage rates. Reminders will be sent out at 20% increments above the customer's monthly data limit. Overages are billed at 5 cents/MB for on-network data use or 25 cents/MB for off-network data use.
If you are a Sprint customer and are interested in receiving the Usage Notifications, click on the sourcelink.
source: Sprint via Phandroid