Still stinging from a self-inflicted black-eye over its flawed maps app, Apple (AAPL) now is making it really easy for users to add Google (GOOG) and Nokia (NOK) maps to their iPhones. Following Apple CEO Tim Cook's apology Friday, the company added step-by-step directions on its website for adding Google and Nokia maps to the iPhone home screen. The instructions provide four steps with photo illustrations to walk users through the process. The