I have mistakenly done an svn revert on the wrong directory and lost my last days worth of work. I think this is a long shot, but is there a way to do an "un revert" in svn?
Not sure if this is any help, but I'm using TortoiseSVN on Windows myself, and there, files that are "Reverted" are moved to the Windows Recycle Bin, from which they can usually be recovered.
Reference: TortoiseSVN Docs