June 19th, 2011, 06:22 PM
Join Date: Apr 2010
Device(s): HTC Amaze 4G - Stock,
myTouch 4G - Cyanogenmod 7.1,
Xoom - Stock Rooted,
G1 - CyanogenMod 5
Carrier: Not Provided
Thanked 1 Time in 1 Post
Rooting is basically gaining 100% full access over the phone to install/delete any files you want. You may have noticed that your phone came with some files that can't be deleted (bloatware), but rooting will allow you to delete them if you want. Keep in mind that if you do delete the bloatware off the phone, you will NOT receive any over the air updates in the future, but if you install a custom ROM, then it doesn't really matter. You can read up on rooting here.
Keep in mind that rooting your phone and installing custom ROMs will void your warranty, and there is a possibility that you could brick your phone (shouldn't happen as long as you follow the directions). Like I said though, it's not everyone's cup of tea.
It looks like it would be a confusing process, but it's really not so bad. I used the walkthrough at the CyanogenMod Wiki to root my phone and then found the ROM that I wanted to install at the XDA forums. If you decide you want to try it out, let me know and I can try and help guide you through the process.