Originally posted by jeff
Take a look at this very brief (3 pages) paper. The author proposes yet another possible way to avoid the SU(2) → SO(3) problem by replacing SU(2) with the supergroup Osp(12). In this case, the immirzi parameter is twice the usual nonsupersymmetric value, one consequence of which is that, effectively, only integer spins contribute to area.
http://xxx.lanl.gov/abs/grqc/0309018
Btw, I found equation (20)  particularly it's lefthand side  oddly moving, though I couldn't quite put my finger on why.

my compliments on this post
the BTW comment is charmingly put and very funny
I have immediately downloaded and printed out the paper
which is by a couple of Beijing guys
and have, of course, given great attention to equation (20)