Jailbreaking your iPhone does not mean unlocking it, it simply means you can add more features while making your iPhone risk free. Apple's restrictive policies prevent iPhone users from downloading several applications. For instance, if you are already bored with the standard iPhone icons, you can jailbreak your iPhone to get your iPhone a complete new look and feel. If you jailbreak your iPhone, you can use Winterboard to get numerous cool theme wallpapers. You can even put video playing as your iPhone wallpaper.
With the latest 3.0 firmware update on OSX platform for the first time, jailbreaking application becomes much easier for iPhone users. iPhone 3.0 runs the non-approved links (or jailbreak). Now users can get most of the iPhone applications previously available only through jailbreaking. It includes video recording, MMS, and much more. Sounds great, isn't it?