Spigen SGP has introduced its Glas.t screen protector for the iPhone 4 and the iPhone 4S. Unlike traditional screen protectors, the Glas.t is made from oleophobic coated, chemically treated glass, which attaches using a strong silicone adhesive. According to the company, no gap is left between the LCD and the Glas.t when installed, and thus the touch screen sensitivity is supposedly unaffected. The material is also said to offer a hardness of 8-9H, or three times stronger than PET film. Spigen SGP’s Glas.t screen protector for the iPhone 4 and the iPhone 4S is available now and sells for $28; for more information, see our First Look article.