When I plugged the EVO into my PC I noticed their was an option for "USB Internet Sharing." Do you get charged for the "Internet Sharing" option, or just for the Hotspot? I am going to be going on a trip this weekend and was hoping I could do this without getting charged.
This is done through your carriers' tethering plan, in your case Sprint, so yes you would have to pay for it. If you use PDAnet you don't, as the app works such that the carrier can't tell you are tethering.