Here's one listing on eBay. And I agree that they are awesome! I have several. Some like this, some with chrome, some shiny, some matte. I know I've seen the ones where you can mix-n-match the colors but can't seem to find it now. The quality is excellent, I love these.
And yes, I got mine from eBay. I think that's the best place to get them. I'm sure street vendors have them too, and I've seen them at kiosks in the mall but they just buy them from the net and charge you more.
I honestly can't comment on whether or not it scratches the iphone, but it seems to protect it pretty well with not much area to get dust in and scratch it. I've also had the case for a limited period of time and really have no reason to take it off and inspect the phone.
I wouldn't know though, my Capsule Rebel was sagging and loose and scratched the phone up, so I'm not really that concerned about it. More just want a case so it looks cool and can take a drop or two.
Will these protect more than the incase slider?? I seen these in the mall a couple of weeks ago and it seemed pretty thin....also is it Less bulky than the incase slider? Just asking because I thought about buying...kind of tired of my incase!