Yes, see the above post by @Tim. That FileUpload addon is pretty close to the original "attachments." Not sure if they are going to make a core facility for this or not, but try Tim's FileUpload for now: http://vanillaforums.org/addon/607/file-upload
File-Upload doesn't help to get my V1 imported forum attachments loaded into V2, though it's a definite step in the right direction. Even if I can't get it to work.
Comments
http://vanillaforums.org/discussion/12782/fileupload-1.1-released
...and, right... making an import script would be another issue altogether.