are you playing against a human opponent? Is data stored on that person's phone?

I think it depends on the method you're gonna use to jailbreak it.

yes, I'm playing against a human opponent

i guess the info would at the very least be saved on his end

Yes. But why do you want to Jailbreak your iPhone?

also, if you didn't disabled the itunes backup function, it should be all right.

Also, your device may slow down and the battery may drain faster. Depending on what you install of course.

Teslanaut I want to either use the Qik or Ustream app

hmmm...never thought about the batter life

*battery

Qik & UStream will definitely ravage your battery life. Recording, encoding/transcoding, sending/receiving. Better have extra power.

sounds like a question for Cnet Live on Thursdays