iMore

I am soon buying the Iphone, but am curiuos why I don't see much in the way of screen protection for the new G? Has the screen improved so much that it doesn't need protection? Are the mirror screens that I saw a year ago no longer necessary? I see a ton of cases, but almost no screen protection and wanted to find out why.
I wanted to also ask specifically about the case to buy. I have read about the best/most popular 5 cases, maybe I can give some thoughts on exactly what I want and get better advice.
I am looking for the nice spongey type cover that also can be clipped (either on belt or shorts if working out).
Thanks in advance....