Just a quick note to let you know that I am still here. I've done some testing with Folder on the new iOS and things seem to be going well. Any document that can be previewed is likely to be able to be printed as well without an update. I won't promise it as soon as you install the new iOS, but from initial testing this appears to be the case.
Additionally I am looking at a dropbox access option for Folder. I won't promise a timeline, but I've started the coding process on this.
Thanks for using Folder!