[Nimdock]

1. Read the stickies at top, you'll find the answer to No.1. It is right there and there is only one.

2. I have never SuperCID any phone.

3. It's kind of illegal in the U.S. so I cannot help you on that one. I mean, yes what happens here is kind of borderline at times, but changing ESN goes a bit beyond my comfort zone.

4. There is no best rom, you need to figure out which one satisfies your needs.