The Attachment grid display for a Project has a different layout and content from the Attachment grid display shown for individual items.  They should be identical or, better yet, configurable.  Likewise, there should be a "Date" column or "Date Uploaded" in this grid.  It would be very beneficial to have versioning support also available for uploaded files - at least the ability to "Update" a file and choose to retrieve an older version.  Tracking actual changes done to a file is not essential.