I haven't found a review for this model anywhere on the net, so I figured I'd post a quick one, as I picked it up a few days ago at Radio Shack. Here's a link to the Delta via Incipio's website: http://www.myincipio.com/iphone-4-c...-delta-hard-shell-case-with-silicone-core.asp The Delta's construction is comperable to the Sicrylic, but considerably beefed up. Overall, I'm a huge fan, and It's my new case of choice. I've been wanting to dump the Defender because the silicone is just way too droopy. Pics to come soon.