It comes out together with RC3 release. It was really long-awaited, so no loger comments for now.
This is the first addon released on the base of universal miniBB algorithm which allows to display any info from user's table in his posts. Addon is NOT destructive and allows you to do further miniBB upgrades without additional editing of files. Addon allows to upload or to choose ready avatar from list, or both. Look at the images located in archive's /!how_it_looks/ - this is what you should have after successfull installation. Avatar upload/choose operations will be available in user's Preferences.Download
P.S. Thanks to Ivan and Cakeman, also as another our users who helped to test it.