Google Docs was designed to work on desktop and laptop computers. The increase in mobile computing has placed a strain on the function of Google Docs and other web-based applications. Google is scrambling to increase the function and usability of Docs on the iPad and other mobile devices, but it's still not perfect.
The list below is a brief overview of features of Google Docs that do and do not work. Keep in mind that improvements and refinements are being continually made.