It was only yesterday that we wrote about a permanent rooting solution for T-Mobile G2 that was built with the already known VISIONary application. Now thanks to that, we now have a permanent root for T-Mobile myTouch 4G as well. Credit once again to the folks at XDA.
The procedure is not too different from what we saw for the G2 and you can check out the complete step-by-step instructions here. What this root means is that we are not very far away from having custom ROM builds releasing for myTouch. But having said that, please also note that the usual disclaimers apply here. More so, because this is a new root and there is a lot of chance for things to go wrong. That could mean, one misstep and your phone could be bricked. So proceed to the link above at your own risk.