I would like an app that shows a reoccuring todo lists for each project. It doesn't need due dates or anything fancy. Just a project ID (I like the way the app "remind me" lets you sign in using an email address to the same form) and every time a checkbox is checked, a comment is made, or a drop down menu is selected, it records the current date and time along with the comment/selection in a database.
Writer is a powerful online word processor, designed for collaborative work.