How to change “wp-admin” to something else without search-replacing the core?

for example: foobar.com/wp/edit instead of foobar.com/wp/wp-admin

How would I do that?

I’ve tried using this in htaccess but it won’t work:

##### ABOVE THIS POINT IS ALREADY INSERTED BY WORD PRESS
##### Admin Base Rewrite #####
RewriteCond %{REQUEST_URI} wp-admin/
RewriteCond %{QUERY_STRING} !sercretword
RewriteRule .*\.php [F,L]
RewriteCond %{QUERY_STRING} !secretword
RewriteRule ^secret_room/(.*) wp-admin/$1?%{QUERY_STRING}&secretword [L]
##### End Admin Base Rewrite #####
##### BELOW THIS POINT IS ALREADY INSERTED BY WORD PRESS

It was created by Michi Kono. I just can’t get it to work though.

I’m not trying to be more secure by obscurity… Its more for functionality. My site will be world editable (kind of like a wiki) but only for registered users. They will go to “/edit” instead of “/wp-admin” to edit or add content.

Thanks for the help!

NOTE: I did see this question: Can I rename the wp-admin folder?
But that doesn’t have an answer.

NOTE: Stealth Admin plugin doesn’t seem to do the trick either.

NOTE: I tried this solution: How to redirect/rewrite all /wp-login requests
But I’m not sure where in the htaccess file to place the rewrite rule with respect to the wordpress rules.

You can try the Redirection plugin, it’s great for exactly that.

EDIT

You could also for example setup a subdomain that makes a transparent redirect, as in : http://admin.mywebsite.com/ which you would redirect to your wp-admin/ folder. But then I think people would still see the wp-admin/ in all the links (on hover for ex).