1. Office for Mac is terrible relative to Office for Windows, to the extent that I get actively frustrated when I try and use it (which I sorta suspect was a design goal.)
2. Google Docs hasn't particularly improved since I started using it.
Seeing as I've more or less given up trying to do heavy Excel work, I need to basically do pretty markup, pretty data, and pretty presentations for non-technical clients. Being able to display it easily on the iPad would be wonderful.