Okay, so T Mobile has a $70 per month plan which includes unlimited 4G. This plan also includes 2.5 gigabytes of tethering to a laptop for wifi. My question is, is it at all possible to use some type of tethering app for wifi that is invisible to the carrier? Is there any way possible to use more than 2.5 gigabytes without paying extra? I have tried a few root tether hack, I am so far the only thing that works is pdanet. I am trying to find something that I can use with wifi. Anyone out there with some help? Thank you in advance!