A lot of people do it. Nothing big. Nearly almost all of the people at my school have their phones jailbroken.

I know, but I think I have a warranty on my phone and I don't want it revoked because of the jailbreak.

Oh, in that Case I suggest not doing it.

You can always unjail break it.

I jailbroke my iPod just to try it out. Not my iPhone though, it wasn't really a necessity. Ain't worth it if you lose your warranty in my opinion.

Yeah, I decided to do a little more research before I do it.
I have a ton of experience with it, I just want to be sure.

you can restore your phone to factory settings and the jailbreak will be gone, so you won't lose your warranty ;)

Lol, you should if you want to crack into peoples wifi. Just come to me for that.