It's always been interesting to me that although the $29.99 Optimus T ships with tethering capabilities, the G2 has no such feature. Of course, it's been rumored several times before that the feature is on its way, but as of today, G2 users are still in the dark.
That may all be changing soon though, as a recent leaked screenshot from TmoNews indicates that an OTA update that will begin rolling out tomorrow and finish its trip on November 8 will not only grant you tethering, but will also bring about WiFi calling. Interestingly enough, T-Mobile seems to be expecting users to discover tethering on their own though, as the screenshot instructs employees to tell customers that T-Mobile does not currently offer a tethering plan. Either way, G2 users sure have an exciting day ahead of them tomorrow!