Whether it's faster Web speeds, security for business users or using the phone's direction-finding capability to let it act as a game controller or location-aware device, it's software, not hardware, that should define the iPhone from here out. - SAN FRANCISCO (Reuters) - The first iPhones won praise for their sleek design and elegant touchscreen, but Apple's new computer phones, arriving this week, will use the power of software to make the device like no phone ever seen. Whether it's faster Web speeds, security for business users or u... ...