> 
> >>> What about the namei hack where you symlink /usr/bin -> /usr/@sys/bin
> >>> and namei expands @sys into 'i386' or whatever?
> >> Good luck... this has been proposed before without a warm reception.
> 
> jfw replies with a couple of paragraphs that express my position more
> eloquently than I am likely to manage to, pointing out that it's bad
> enough that / is reserved; reserving another character is truly the
> first step along the path to the Fear and Loathing Filesystem.
> 
> If you must do something of the sort, create a new inode type, or
> perhaps new directory entry type, that is essentially a symlink to a
> place the kernel computes based on the stored link-to string.  If you
> prefer, think of it as an ordinary symlink with a "please mangle the
> link-to string" bit turned on.

cdf would be a solution for this but there is no hope to 
implement this, is it?

nobody answered to the question...
ciao
Carsten