I read a tech opinion a few weeks ago where a real estate agent was asking how she could manage her Excel files (a Windows mark) on her iPhone and iPad. Of course my first suggestion would be to get an Android phone and tablet and do things right. However I recognized you may already have invested double in an Apple product so why invest more in tools you have to pay for to accomplish this simple task?
If you have an Apple mobile product but work on a Windows (or any PC other than a Mac) you can store thousands of documents for free on Google docs. You can also edit your files easily on any Android device without any additional necessities. If you use an Apple product, however, there is a solution and that is the iGoogDocs available in the App Store for only $1.99
Now the recommendations made by, actually a friend, are okay but unnecessary. While they recommended DropBox and DocsToGo chances are that’s little more than a waste of money for most people (I do use them both but they can be overkill for many). Google Docs is free and iGoogDocs is $1.99 which is much better than $19.99 and $75 per year.
No intended disrespect to my friend(s) but this would be my advice for those using iPhones and iPads to catch up with the Droid patrol.