We do have file storage via WebDAV or ftp, though it's not as full featured as companies that specialise in it. I wrote that up last year as well. It works OK,

We do have file storage via WebDAV or ftp, though it's not as full featured as companies that specialise in it. I wrote that up last year as well. It works OK, though it will be nicer one we spec out jmap file storage api.