It has only been a few days since the T-Mobile G2 started shipping and the handset has already been rooted. The G2 comes with stock version of Android 2.2 i.e. without the popular Sense UI. Rooting an Android phone brings with it a lot of advantage. It allows you to overclock or underclock your phone’s CPU for better performance or better battery life and enable Mobile tethering etcetera.
Users who are interested in rooting their G2 should get adb on their PC and install Terminal Emulator on their handset. The steps to root the G2 can be found here. The only downside of this root is that its temporary in nature. It means that as soon as a user restarts his phone the root will vanish and he will have to re-do the rooting process again.
However, I am pretty sure the folks at XDA-Developers forum will find a workaround for this soon enough.