I just tried to use the Community Builder Tab-Plugin on my site and it worked very good, it just didn't displayed the gallery names with the latest SVN build.
If a user has a lot of images, all of them are displayed in this tab, this is not very useful, I would have built in a limitaton to 50 images, if I could
And displaying the images next to each other and not one below an other would result in a lot of more space left