I quickly created a possibility to export scuttle's bookmarks in a format that makes them importable to Firefox & Internet Explorer.
Did so by cloning the scuttle API's posts_all.php, changing it to the Netscape Bookmark file format - see here http://msdn2.microsoft.com/en-us/library/aa753582\(VS.85).aspx
(that format or some variant is used by IE's & FF's bookmark export&import)
generally the thing is expandable, with a larger amount of work, to create folders corresponding to tags. However one bookmark would then have to be placed in as many folders as it has tags.