Its a patch that you flash on your phone so you can use the 3g hotspot app and verizon wont know you're using it, so its free I downloaded and installed it from the Fission Rom Manager. FRM has a bunch of add-ons that work with liberty too.
This is how you get the 3g Patch. Just make sure only to flash the patch via recovery as the the mynet.apk is now built in and there is no need to install the other version.
How did you get this to work? You are running the leaked rooted version of GB? Mine doesn't work either; meaning it starts up, no errors but I can't get an IP address from it.
I can confirm the above methods worked for me on GB.
I uninstalled AWT 2.0.7 and installed the new one, 3.0 pre12. I also downloaded just the TBH patch.
D2 Bstrapped into CW, then flashed patch and rebooted. Installed 3.0. After a few minutes of it not showing up as a network, it finally did and connected and was able to use the web, despite the 3gHotSpot app. Ideally, i'd like to just remove it or something, but this works for now i suppose!
Like others said, the TBH patch worked for me as well. Only downside is that there are two icons now. I was hoping the 3g hotspot would work so I didnt have to use the wifi tether but it does not seem to create a network. After installing wifi tether 3.0 it works.
I cant wait to be able to just remove the built in 3g hotspot