Are there still any advantages to jailbreaking? What are the Pro's and Con's of jailbreaking? I am mostly concerned with the negatives...Thanks
This is a very common question/concern for first time Jailbreakers, You will find people in both sides of the matter, it will all depend on their personal experienced, those who got a real bad experienced will tell you to stay away from it, that is dangerous and it will slow down, crash and make your device unstable, those with great experiences will tell you that is not negative side of it. Well...who is right? they both are....
Jailbreaking give you freedom, give you total control over your device, what do you with it will yield a positive or negative experience, if you give a sport car to a 9 year old I am pretty sure he will crash it and maybe even kill himself, if yo give it to a 75 year old guy, he will drive it so slow that it will me almost a waste, the key is to find a middle point.
key to success, is read, research, understand what you are doing, make sure you install only application from "known" developer with previous records, don't go crazy installing everything under the sun, support the developers (don't pirate apps, most of this guys are single developers or small teams working on their spare time), Follow basic rules of security (Change defaults passwords, use strong passwords, Backup, backup backup All the time, save your SHSHs), don't be afraid of trial an error, if something goes wrong, a firmware restore is not a bad thing.
Feel free to ask any question, you can check out this FAQ for more details on Jailbreaking.
Jailbreak FAQ and commonly use Terminology + Guides