The IMS uses two Forbots (6 wheel mobile robots) in its research projects. The aim of a recent IMS student project was to develop a tablet-based remote control for the smaller one of the Forbots.
This video shows the remote controlled Forbot in action.
More Info:
http://www.engineering.zhaw.ch/en/engineering/institutes-centres/institute-of-mechatronic-systems/course-of-studies/abgeschlossene-mse-vertiefungsprojekte/forbot-tablet-steuerungsapplikation.html