A lot of the apps are built around specific types of documents such as notes, spreadsheets, presentations etc. They try to make a big leap forward and cover other types of documents as well (e.g. code snippets, blog posts,.txt files) but it doesn't seem to go deep enough to become truly useful across multiple types of documents. It's nice that they've focused on iWork but still haven't created a universal way to edit and read all types of documents. Some tools work better than others. Evernote has done a great job making it possible to get rid of clutter, but there isn't yet a good solution for editing text or pictures in iWork or Microsoft Office documents. I think Apple will need to give us something along the lines of Google Docs if they want to really compete against services like Dropbox. I wish the app had a little less UI overhead when you're just trying to read or write plain text.