The ability to ailbreak an iOS 5 device is well on its way to becoming a reality (already you can do a tethered jailbreak, which means that you must be connected to your computer every time you reboot). But why would you want to jailbreak your iPhone in the first place, considering that it could damage your phone?
The reason is to to take advantage of the enhanced features available for jailbroken devices. Here are 15 apps and tweaks that might convince you that jailbreaking isn't all that bad.
Reminder: Jailbreaking an iPhone can void its warranty.