Shamus announces an update to his wavatars plugin. However, as noted earlier, the pending release of WordPress 2.5 will likely break most avatar plugins due to its built-in avatar support. It think it makes more sense to wait for the post-upgrade version of wavatars for the time being; I still would like to see a way to define avatar libraries so that instead of two plugins, I could just select from a drop down of avatar styles (wavatars, monsters, etc).