Drupal Eight needs to be mobile-friendly. One of the tasks in the core Mobile Initiative is to bring a quality user experience to the administration interface in line with the expectations set by native applications. This session covers the challenges, pitfalls, and potential solutions for the initiative, as well as outlining future road maps and how you can get involved. Bartik and Seven are also being transformed into device-independent, responsive designs. This session details the challenges involved in providing out-of-the-box responsiveness in core themes, how we are solving these challenges, and what the future might hold beyond current solutions.