Flawed... – Pianist Review

Lotta fun...when it actually works, that is. When I go to it on my homescreen, it jumps me BACK to my homescreen after a few seconds. It was working fine the first day I downloaded it, but it's been acting up ever since. And please forgive my ignorance, but I've only had my iPhone a couple of months. What exactly is a "jailbroken" iPhone?
Review by FunkeeDumpling on Pianist.