With two kids under 4 and my clumsy nature, I picked up a case immediately for the iPhone 4. I started with the Incipio Edge because it was available and came with a rudimentary screen protector to serve until my PS one arrived. Fast forward, I dropped the phone and the case did its job but was left with a crack. I also was not a fan of the way the case was wearing despite babying the phone (apart from the drop). I have replaced the case with an Incase slider case but the edges of my screen protector are bubbling up. I noticed Zagg makes a screen protector that claims to be cut down to accomodate slider type cases. I had a Zagg shield on my old phone but I read they dropped the ball with the iPad sheilds. Is the Zagg screen protector a good choice for an iPhone or should I stick with the PS despite the bubbled up edges from the case?