It's probably the best Incipio case yet for the iPhone 4, and the most improved from prior generations of the same design: Silicrylic ($30) is a silicone skin with a hard plastic shell that snaps into place as a frame, enabling the case to protect all of the iPhone 4's side and top buttons while offering firm back coverage, and soft-contoured holes on all sides. Unlike earlier Silicrylics, the iPhone 4 version's two layers integrate seamlessly together…
