This is nautilus 2.7.2, the file manager for the Gnome 2 desktop.

Major changes since 2.7.1 are:

* Added spatial/browser pref to the prefs dialog
* Use ctrl+q to add all windows
* On shift-double-click on a non-folder, close the window after.
* Bug fixes
* Show estimated time remaining in the progress dialog.
* per-window show hidden files setting
* Don't warn about mime-type mismatches if the handler is the same 
  for both mime-types.
* Date formatting improvements
* Killed start-here
* Changed to use the new mime spec and UI