The most useful feature that I like the most is the ability to easily add new content to my sharepoint site and add it to my inbox. I also like the ability to drag and drop my files from my desktop to my inbox. I dislike the fact that I cannot download my files from my inbox. I also dislike the fact that I cannot create a task in my inbox. I would like to be able to create tasks in my inbox. I also would like to be able to download my documents from my inbox. I would like to be able to drag and drop my documents to my inbox. I would like to be able to use my inbox as a task list.