
Before upgrading to iOS 4, make sure you weight the pros and cons of iOS 4, but most importantly, make sure your iPhone is ready for iOS 4. As usual when a new firmware comes out, jailbreakers should beware.

Before upgrading to iOS 4, make sure you weight the pros and cons of iOS 4, but most importantly, make sure your iPhone is ready for iOS 4. As usual when a new firmware comes out, jailbreakers should beware.