I kept getting tripped up while performing everyday tasks. Here are a few examples: The iPad doesn't have a file system like the Mac, where you save documents from different applications in a single pile.It's a completely different way of storing and managing documents, and it takes some getting used to for people who are accustomed to doing things on a desktop computer. In the iPad's Web browser, you can't open a whole folder of bookmarks all at once like you can with desktop browsers. When I do online banking or shopping, I like to save PDFs of receipts to my desktop. You can't save PDFs on the iPad.