Microsoft has a complete version of Office ready for release on the iPhone and the iPad, according to a new report from Reuters. The software is said to be ready to go as soon as new CEO Satya Nadella decides on a launch date. The lack of Office software on Apple's devices is becoming a serious issue for Microsoft as it hemorrhages both users and revenue to simpler apps, losing its grasp on an entire generation of users. According to one analyst estimate, Microsoft is losing approximately $2.5 billion per year avoiding an iPad version of Office. As Microsoft fails to bring its productivity software to Apple's mobile platfor