So it's not legal to "jailbreak" phones. You can now switch carriers on your iphone or instal apps that are not apple approved. Of course, it still voids your warranty. however, you're now free to switch SIM cards and install all sorts of other stuff you weren't allowed to do before.

Heres how!

http://finance.yahoo.com/family-home/article/110168/how-to-jailbreak-and...