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I use the Zerochroma Teatro-S.
http://zerochroma.com/mobile/devices/iphone4teatros/index.php
I also have the regular Teatro that I used for the iPhone 4 but I found that case has too much play in the top corners which scraped the metal band over time. The Teatro-s fits my iPhone 4s perfectly.
I find that I use the rotating stand quite a bit. It folds flat when not in use.