The About page is all about you. Tell us a bit about yourself, you hotshot photographer you. You may want to include a self-portrait!
You can get a fairly accurate preview of how your site will look on tablets and mobile phones by using Lightroom's screen mode options to resize the preview area. Use our free utility TTG CE3 Viewport Sizer to setup your ideal workspace!
The Home page gallery is backed by a mobile gallery for tablets and phones! In the Appearance pane, under Home Page: Staging, set Gallery Type as "CE3 Standard" to customize the appearance of the mobile gallery. When you're finished, change to any other gallery type you like for your Home page.