Came here to post a howto (I 've been using 4.12 on sparky couple months) getting meta (easy way
) from experimental then using the 'kdebian org repo' (a sid repo) to keep upgradedBUT
changing sparky to sid is easy (especially because they kindly included the repo (in apt/source.list.d')
The package 'xfce4' (meta) in sid still don't like me! But upgrading 4.10 to 4.12 with sid works great
Using the openbox 4.0 RC and getting xfce4.10 (from testing) and upgrading with 'sid' (work great
P.S. kdebian repo does have the 'thunar-dropbox plugin tho!