On my previous phones (og Droid and thunderbolt) i loved being rooted. I used it to overclock, change roms for functionality and design (loved bamf cubed and bugless beast), wireless tether, and run programs that the phone didn't support previously.
Now having the RAZR Maxx, and on the shared plan, don't really need tether, already at 1.5. I south mind speeding it up to see what it can do, and checking out new roms, but i haven't seen a lot yet about either. Are there oc kernels? What's your favorite rom, and why?