I got one of these. Not from the same seller but similar price and it's tpu. I imagine they're all the same on ebay.
BLACK Soft Gel TPU Hard Case Cover fr Sprint HTC EVO 4G - eBay (item 300440215923 end time Jul-23-10 09:04:08 PDT)
There are individual cutouts on the back like in the pic. It fits tighter than the silicone one I got on ebay and covers less of the edge of the screen which is nice. Even so it is raised above the screen to protect it when layed face down and it does protect the camera. It is also about half the thinness of the silicone case. I got the black, which is kind of a semi transparent smoke color. The only criticisms I have are that you feel the power and volume buttons, which are covered, less than you do on a silicone case and one side of the case has kind of a rough seam. Both minor issues. I like the case better than the silicone and for the price it's hard to beat. I think I'm going to get another in another color.