OK so I'm wondering if the "skins" for the blackberry pearl do a good job protecting it. I've been using the pouch that came with it but want to buy some different colored skins for it... I usually keep my phone in my purse so I'm worried that with the skin only covering the sides and back it might mess up the buttons or ball.
1. does it protect the phone good?

2. Is there a way to lock the buttons? (I think on my old phone it was *3?)