The good news: we have updated the Manual for Version 3.x. We have have added much more detail on all the front end views. This also helped us review the code and rearrange many of the options so they made more sense.
The bad news: MyMuse uses Live Update from Akeeba. We discovered we had not changed the update stream to monitor for version 3.X. If you have MyMuse 3.x please update to the latest version. Or you can download config.php.zip. It goes in administrator/components/com_mymuse/liveupdate/config.php. Now you will get notified of updates. The latest build of MyMuse is com_mymuse_J3-3.2.4-1261.