I'm trying to understand the differences between each of your themes. Are they really just the UpFront editor functionality bundled with a bunch of pre-made pages? Is it more than that? I read that I will loose any information that I create within the UpFront editor if I switch themes, even to another WPMU theme (which is almost a deal breaker for me to put on client sites). So I want to be extra sure that I have selected the right theme for my client as I build out her site.