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I myself prefer white. Even though I have a black 3G, I hate how scratched up it can get even after a few months use. The white on the other hand, still scratches (thanks to Apple's horrible choice of material) but isn't visible almost at all. Once I upgrade to whatever the next iPhone will be (as I'm able to upgrade in August 2010! :() it'll totally be white.
 
Switched from white to black.

I got a white 16GB 3G last year so I ordered a 32GB black 3GS this year. THey both look great, but since I'm getting a new iPhone I want it to look different.

I got the inCase Slider today to put it in tomorrow!
 
I wanted something different and i got tired of the black so i went with the white this time around. It looks very nice!
 
I had white last year. Wanted to change things up this year (plus my invisible shield got all gross in the corners), so I went with the 32G black.
 
I have a white 3G now, but will be getting a black 32GB to change it up. I love the white, but hate the cracking that appears! I also want it to feel more like a new phone, and a color change should help to do that! I will be buying the Griffin Reveal to put it in.
 
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