Even Cisco has left CLI for all practical purposes...and yes, on their security devices (as has SonciWall, WatchGuard and on and on...)

Most developers in the HPC arena use command line interfaces. Most code is written with "vi" or "emacs" and "make" is the preferred build vehicle.

Developers sure (as in the guys in San Jose creating an image for IOS). But, even getting my CCIE Security we used very little CLI and many MFG's are simply blocking access to the CLI (as end users will jack things up). That said, I have left the Cisco realm in the dust as there are solutions as secure if not more - for far less of the budget. The things we do at the edge now are mind boggling compared to just five years ago.

I run the T50 at home (fully featured) and dont bother running any thing more than Microsoft Security on my systems. Performance is drastically improved over even a light AV application (plus the WLC is super hand for my AP's).

Product Comparison Chart Results | WatchGuard Technologies

Apples vs. bananas. I guess you aren't familiar with root access as the mechanism to limit what users can accomplish?? Command line interface or not makes no difference what users can or can't do, at least in a unix/linux enviornment. I am not sure what your point is as you have stayed off of my post.