I'd like to know this too! Pick one up tomorrow if so.
Have an otterbox for my 4, and ive dropped it onto cement at least half a dozen times without so much as a scratch.
I just picked up an Incipio DualPro for my iP5 at my local Verizon store. Best Buy had 1 Otterbox Defender for iP5 (well for "New iPhone") but I'm not a fan of that case.
Wow, I'm surprised otterbox was able to come out with cases so fast. I remember having to wait around a month for the defender to come out. Because I knew I had butterfingers, I wasn't going to order my phone until that case came out.
My phone is still in amazing condition.