I haven't used git yet but after reading the
excellent article that
Rob Lanphier posted (
http://hginit.com/00.html), I think I will. That
article also explains why there wouldn't have to be as many updates to
SVN as is done today.
I don't think there's any doubt that git would work for Wikimedia but
there would definitely be some workflow changes. That's probably the
larger issue.
Mark W.