I think one of the most important facilities for making good use of Cloud Docs will be document management. I have been extremely frustrated by the total lack of such features in the recent Document Open interface, which just lists some very small number of recent docs, without any consideration of folders, projects, clients, or other important organizational features. The OS provides us with hierarchical folders that can do a fairly good job of organizing the dozens (sometimes hundreds) of files on a project or for a client, but without some facilities for that purpose, I can see the proliferation of dozens (hundreds?) of cloud docs, now encompassing multiple Adobe applications, turning into a nightmare of disorganization.

The basis of any file management system has to be the provision and support of metadata. This probably will require sidecar files, or at least a central Adobe db of filenames and attributes. The simplest facility would be allowing users to create open-ended KEY WORDS for individual files, since that doesn't have to involve a hierarchical database. Files can be tagged by project, by in-house creator, by client contact name, by client company, or anything else that helps.

Here's an example I deal with every day -- (admittedly from InDesign, not Ai)

For one client, I an designing a book interior: graphics, layout, typesetting, etc. Since it's a 500-page volume, I use separate InDesign files for each of its 55 chapters. After performing an operation on the "book" (metadata managed in InDesign), every chapter file is modified. So from then on, all I ever see in the Document Open interface is the last 30 chapter titles. This is absolutely useless! What I need to see is the files I'm working on for other clients, other projects for this client, the chapters I'm currently most concerned with, and so on.

Please consider these issues as you develop further facilities in support of Adobe Cloud Documents.