WHAT IS IT FOR?

If you succeed you will be able to use remote files as local ones.
For example file at remote host can be accessed like:
 cat /smb/host_share/dir/file.txt
This share will automagickly mounts and you have access to this file.
There is support for this actions in TkSmb.
With this you can use TkSmb as a browser in network and work with files
(without downloading it) by any program.
This methode using kernel support for smbfs in linux.

HOW TO HAVE IT DONE.

-Check weather you have samba-2.0.6 or later
-Check weather you have autofs package.
-You should also have automounter in your linux-kernel turned on.
-Check weather exist link: /sbin/mount.smb -> /usr/bin/smbmount
  It is needed to be able to run command like:
     mount -t smb //host/share /mount-point
-Copy line from file auto.master to /etc/auto.master
-Copy line from file auto.smb    to /etc/auto.smb
-Replace link /sbin/mount.smb with file in this dir.
 NOTE: It will break usage of 'mount -t smb hostname:/sharename /mnt'
       where sharename is 'none'. It will happen if your smbmount
       have automount support turned on. In other words you will not be
       able to mount share with name 'none' by mount command in this
       notation.
-Make dir /smb
-restart autofs daemon.

You should be able to automount shares on hosts with
  cd /smb/host_share

BUGS
  Passworded shares cannot be used.