Description of Problem:
Navigation of the filesystem (particularly when
going many levels deep into the filesystem) using
Nautilus in spatial mode (GNOME 2.6) can clutter
the screen with too many windows, ultimately
confusing things.  In addition, even if the option
to use only one window to navigate the filesystem
is used, it is still hard to navigate back and
forth or hop around to various levels in the
filesystem or directory structure.

Steps to reproduce the problem:
1. Try using Nautilus in spatial mode and navigate
to files deep in filesystem (at least 5+ levels deep)

Actual Results:
n/a

Expected Results:
n/a

How often does this happen? 
Always

Additional Information:
Basically, all you have to do is reuse the new
"pathbar" widget that was introduced in the GNOME
2.6 Fileselector Dialog in Nautilus.  Allow the
user to add the "pathbar" widget as a toolbar in
Nautilus.  The simplicity of spatial mode is still
maintained and the need to open multiple windows
is eliminated.