We'd find it useful to be able to add files to existing items using the desktop uploader, rather than the uploader creating a new item for each upload.

I'd also like to support the idea of  all members of a Project having the ability to edit the metadata on each other’s unpublished items. I think you've had this request already.

Both of these would help us when working with large, complex datasets with more than one author. 

Thanks

Dan

I also vote for the 2nd item - the ability to edit the metadata on each other's unpublished items.  I'd also go a step further and ask that "super collaborators" on a project be allowed to remove items uploaded by someone else in a project, e.g. replace an item with a new version.  This would probably require a 3rd role for projects.

I'd also strongly request more roles for projects. They are currently not very collaborative.
I'm thinking of:
- Owner (the person who created the project - can do anything)
- Co-owner (can be assigned by the owner - can do anything, including editing and deleting items and inviting other users)
- Collaborator (can upload new and edit existing items)
- Viewer (can only view and comment on existing items)