Why Should You Jailbreak the iPhone 4?
It’s probably a question many iPhone 4 owners have been asking lately, now that the Library of Congress has ruled that jailbreaking does not violate DMCA copyright laws. When you jailbreak an iPhone 4, typically you’re doing so to access features that are simply not supported with the regular iOS from Apple. For instance, if you want to choose between the Apps are aren’t Apple-approved, you’ll need to jump outside of the Apple-enforced boundaries by jailbreaking (JB). People that want access to the iPhone 4 file system (for absolute control over their mobile device—and the potential of bricking it beyond repair) need to JB the iPhone 4 in order to do so.
For cheaper and seemingly more reliable WiFi access, JB provides a way to use service providers other than AT&T, and those that don’t need to jump through the cumbersome hoops Apple places in iPhone 4 owners way towards decent internet access. If you wish to sever the relationship with AT&T permanently, JB’d iPhone 4s can ‘unlock’ the mobile device, in effect leaving the agreement with AT&T to be their only official service provider. These are only a few things that JB iPhone 4s are capable of, so if any of this sounds good to you, you may owe it to yourself to see what the fuss is all about.
Ask Apple & they will tell you your warranty is voided when you jailbreak a device even though it is the legal thing doing it and they will probably not want to assist you in case the security issue comes. While gang that generally gives the jailbreak & unlock solutions, iPhone Cases Dev Team, always have done it in very good faith, and there should be some other smart people for figuring out holes Apple that is left in iOS 4.