Part of the reason why people seemingly don't use much of their iPad storage is Apple's woeful disregard of many (not all) people's need for a proper filing system that can sync easily with their desktop. i.e. Dropbox. and apps that can save files to this file system. The iPad is a totally dumbed down device, and in order to use it in business you compromise the full ability to work on your files as you would with your desktop/laptop. If the iPad was more functional, people would use it more for those more productive functions.
Microsoft has the right idea, but they're still on their 1st iteration, whereas Apple is at their 5th, so give MS about 5 years more. That's enough time for Apple to lose their market dominance, e.g. remember the fate of IBM PC, Netscape, Digital Computer, Firefox, Blackberry.
iPad is currently great for business for displaying things, or quite notes, but you'd never work for hours on an iPad - and people have been sucked into thinking that that's all the iPad is good for, but it could have been SOOO much better and so much more useful.
