Originally Posted by OmsagroSylph
I recommend reading through all the threads and there posts in this section before proceeding. As this phone is new, there aren't that many and most of your questions will be answered before you even ask them.
Given the complications that could arise from the actions you wish to perform you are definately going to want to brush up on your use the search functions in this forum and out.
Not only will it take less time, but you may find something of interest or import that you can then in turn share with the community.
Just wanted to quote this to emphasize the importance of reading and completely understanding what you are doing BEFORE you attempt to root. It is not an easy process, but it isn't hard if you understand all the steps before hand. By reading all the posts and getting a strong grasp on the entire process, you will also see common mistakes, and not so common mistakes others have run into. It will make the whole thing that much easier for you.
That said, rooting has many advantages. Even without custom roms for these devices yet, just being able to remove all the bloatware, and in some cases replacing preinstalled apps with other ones from the market, such as the notepad app, will give you more internal ROM, it will also greatly improve battery life. My battery life more than doubled just by removing many of the preinstalled apps.
Plus you will have a lot of fun once custom roms start hitting the streets. I'm dying to see how these phones run with CM.