Macotakara, a Japanese blog, are rumoring that Apple will release an "iPhone 4S" in July or August this year with the same form factor as the current iPhone 4, with a a completely new model, or "iPhone 5" not be launched until Spring 2012 (!). The main difference will be in the hardware inside the phone. They claim that the iPhone 4s will have an 8-megapixel camera, an Apple A5 chipset based on the ARM Cortex-A9 CPU, and will have a built-in SIM and thus not require the card.