I searched but don't find that anyone is using or commenting on any of the cases from
www.ultra-case.com. The Monos, Satins, and Shinings appear to be just the stock case although in different colors (and in a matte finish in the case of the Satins). They also carry a very wide assortment of designer cases (leather, carbon fiber, etc...).
These cases fit so well that a friend of mine has one on his 3G and I had asked him why he didn't get a case to protect his iPhone. His answer: That is a case on my iPhone. Nice Apple logo on the back. I mean you really can barely tell it's on there (his is gloss black).
Have people had problems with these cases or something because unless someone can give me a reason not to, I'm ordering a couple for the two 3GSs my wife and I have arriving 6-19-09.
http://www.ultra-case.com/