Yes in concept it is like Tether, that is it allows you connect a PC to the internet. The difference is that Tether creates a network adapter and routes you over data to their server system so you are not truly tethering.. If you use your BB as a true modem, you are actually tethering. Most carriers forbid this or require additional services and charges. If you have Tether, stick with that. If you plan to use the modem route check with your carrier first.
