So Im new to the whole rooting thing, I came from a backflip. Its amazing to see that in a matter of weeks the captivate already has 10000x more support. My question is: what does a custom ROM do for me? As in, does it improve the speed of the phone? Does it add more features/capabilities? And where do I find ROMs for the captivate? I apologize if this has been addressed somewhere else, I've done quite a bit of searching and havent found much information in one spot.