Try entering more than a few words on an iPad - Microsoft Office is mainly for viewing documents

It is still beyond me how anybody could use keyboard shortcuts on a tablet like the iPad. The beauty of a laptop and or a desktop is the fact that the screen in unencumbered, you can issue commands with a small cursor and with the keyboard. 

You may have heard that Microsoft Office has been release for the iPad. Inasmuch as some claim that it is about time, Google Docs has been a very suitable web based office suite. Nevertheless, it comes down to the fact that a tablet is a device for consuming media, not a tool for productivity (with the exception of those which are equipped with a stylus for handwriting or working with drawings and photos). There are a artists who have adopted a tablet computer for making beautiful paintings, however they are the minority.