If you don't have anything to say, don't say it...
Originally Posted by toomanyphones
And O. P. jailbreaking simply means that you will be able to run "unauthorized" apps on your iPhone! It installs an "alternate app store" called Cydia, which will allow you to buy (most free) tweaks and apps and themes that will improve functionality, customize, and tweak your phone till your hearts content.
Of course my opinion is a little biased as I'm a jail breaker, and you should do your due diligence in seeing if jailbreak is something for you