pcmanfm 1.0-0ubuntu2 (amd64 binary) in ubuntu quantal

 PCMan File Manager is a GTK+ based file manager, featuring:
 .
  * Extremly fast and lightweight
  * Can be started in one second on normal machine
  * Tabbed browsing (similar to Firefox)
  * Drag & Drop support
  * Files can be dragged among tabs
  * Load large directories in reasonable time
  * File association support (Default application)
  * Basic thumbnail support
  * Bookmarks support
  * Handles non-UTF-8 encoded filenames correctly
  * Provide icon view and detailed list view
  * Standard compliant (Follows FreeDesktop.org)
  * Clean and user-friendly interface (GTK+ 2)
  * Support GVFS for auto-mount handling on removable devices