[development] Drupal SU module anyone?

[David Metzler]

I had another idea for a simple module that I'm considering  
developing. I often get overwhelmed with drupal administration, and  
have many sites where admin is shared.  Every time I add a module in  
drupal I tediously enable all access  permissions for my "Admin"  
role.  I began to think about the Linux sudo model, and thought this  
might be cool for dupal. Users with "Become Admin" privilges could  
switch to the "admin" user only.  This way I could largely see the  
view that my content contributors do :).

Does this seem like a good thing?  Anyone know about duplication?   
I'm aware of Devel, and Masquerade but I didn't feel the need for  
that on the production sites, and I really don't want to expose the  
"Become Any User" functionality (but maybe I'm being silly here).