Naked for now, but I'll probably get a case once the Otterbox Defender comes down in price a little bit. My wife has the Defender for her Evo 4G LTE and it feels very good in the hand - very solid and grippy.
It's Nokia.. I'm glad to tell people I don't need a case or screen protector because I have a Nokia, oh and dropping it is going to hurt whatever it hits more than the phone .
Have an Otter Box Defender for when I need it. And I do.
Bought a Krusell Tumba Vintage Brown when carrying the Lumia instead of my wallet (The Krussell requires you undress the 920 before using and has a credit card pocket ). Nice for bars and restaurants but a very tight fit and doesn't hold headphones. Yet to find the perfect case
No case. Haven't used on on any of my phones since the iPhone 3GS days. The comment about "work of art" is true. An iPhone 4/4S especially. God those things are wonderful to look at and to hold. You can tell The Steve had a hand in the design. As for the Lumia series, same thing. Beautiful.
-joe-
I bought a case but I'm careful enough with it(checking to make sure it's in my pocket before leaving the car, in my pocket while going down staircases, ect.) that I think I might just keep it naked. It's my red beauty. Feels really weird saying that but compared to every other phone, it is(especially android phones, blech). Ordered a back and front skin thing. Hopefully it isn't filmy.