With the new untethered jailbreak ready for mass consumption, I'm debating once again whether to jailbreak my iPhone 4. It seems quite easy to do (and to reverse if need be), but I'm one of those people who is extra-cautious when it comes to this stuff. That said, this new jailbreak seems pretty routine - at least from what I've read about it. For those of you with experience jailbreaking, what would be your argument to do it? For those who are anti-jailbreak, how come you've resisted the temptation to "free" your phone?