BigBoss, as usual, has a very interesting post on his blog about the reasons why you would jailbreak your iPhone. I wrote many posts about jailbreaking your phone and you may see most of them here. I will sum this up the reasons why you would want jailbreak your iPhone but I invite you to read his full post.
- WinterBoard + Customize
- Jailbreak to fix Apple’s bugs
- Cycorder and Snapture
- Taking control of your system
BigBoss goes more into detail for each of these reasons and it’s worth the read.