2) For discussion:  the CDF preprint "First Flavor-Tagged Determination

     of Bounds on Mixing-Induced CP Violation in Bs -> J/psi phi Decays",

     http://arxiv.org/abs/0712.2397.  Peter mentioned there was a talk

     on this subject at MIT recently, with combined CDF+D0 results, but

     I've not yet found a corresponding preprint or talk online.  The paper

     above is CDF-only, from December 2007.  If you know of a more recent

     writeup with the combined D0 and CDF results, please post to this

     mailing list.