Abstract: A method and user interface for displaying and enabling access to data items stored on a handheld electronic device, the data items being organized in hierarchical menus associated with characteristics of the data items. A navigational feature is included which actuates direct display of a top-level menu from any of a plurality of user interface menus, without requiring navigation through any intermediate menu, even when commencing from multiple menu layers below the top-level menu.

Abstract: Generally and not exclusively, there is disclosed a system and a method for towing (pushing or pulling) a roadway vehicle on a road by a towing apparatus. The towing apparatus is coupled to a roadway guideway displaced generally above the surface of the roadway. In an embodiment, the system includes an apparatus to couple a vehicle to the roadway guideway, a force generation unit to move the coupled vehicle along the roadway guideway, and a brake unit to decelerate the apparatus and a coupled vehicle. In an embodiment, the system includes a coupling unit to separately couple or not couple the vehicle to one of multiple separate components of the roadway guideway, so that the towing apparatus, and therefore a towed vehicle, can switch roadway guideways by coupling to one or another component of the roadway guideway.