if you set your beebers to stune, all things will be right...
http://en.wikipedia.org/wiki/Tethering
If you are looking for just a conference need, or a short term need, you could look at the pre-paid options from Virgin Mobile, which is owned by, and uses the Sprint network.
http://www.virginmobileusa.com/shop/mobile-broadband/broadband-2-go/
http://www.virginmobileusa.com/mobile-broadband-plans/broadband-2-go/overview/
Or most likely the least expensive: just pay the conference center's access fee for wifi.