Hello everyone. This is my first post on this forum so I hope I'm not breaking any rules. I'm thinking of jail breaking my iPhone 4 (AT&T) for a trip I'm about to take because I want to have the ability to tether my iPad to my iPhone. My concerns are: 1.Will I be able to unjail break my iPhone once I return and have everything back to normal? 2.Will I lose my unlimited data plan? 3.Which is the best (or stable) jail break app (I've been researching Cydia)? Any info will be greatly appreciated. And I'm sure this topic has been discussed but I haven't been able to find it. My search function doesn't seem to work. Thanks.