In the good old times, when we used to have the Wps galleries situated in the wiki, anytime a new theme, respectively a new modification to theme, was comitted, the front page would list this as a wiki change. Now that the new themes site is up and running, themes get uploaded, but you never know when the last recent activity has taken place in that domain. I herefore call to create a section either on the frontpage, or at least on the theme site itself, which lists this activity. what do you think?