The total count of valgrind warnings in the wine test suite has gone down from about 2000 a month ago http://kegel.com/wine/valgrind/logs/2009-11-16-19.12.errs.txt to about 1000 today http://kegel.com/wine/valgrind/logs/2009-12-15-07.57.errs.txt (as computed by http://kegel.com/wine/valgrind/logs/count.sh.txt ).
Thanks to everyone who has been helping clean this up!
Let's see if we can cut it down another 50% by this time next month...