iPhone 4 launched
The design The hardware design hasn't changed from the one we already knew about. It uses the same materials as the prototype: Black glass and stainless steel rim. It fits with the rest of the Apple product line, from the hard edges to the Dieter-Ramsesque utilitarianism of the iMac and the iPad. The black glass is aluminosilicate glass. Apple claims this glass is "chemically strengthened to be 20 times stiffer and 30 times harder than plastic." According to them, this makes it more scratch resistant and durable than the previous generation. The size is smaller than the previous generation: 34% thinner than the iPhone 3GS. Although it is 3 grams heavier. According to Apple, it's the thinnest smartphone ever. It has split buttons for volume, unlike the current iPhone 3GS, all made in stainless steel. The stainless steel rim The stainless steel rim gives the structure to the iPhone, and acts as part of the antenna for 3G and Wi-Fi. In theory, this will greatly incr