Big Linux deployments have reached the point where it's become a real problem for administrators that they don't have nice tools to manage their servers and desktops.
Red Carpet Enterprise has been really well received since one guy can install it in about an hour, and it makes it trivial to deal with software management issues like deploying updates and creating standard package sets for your various machines.
It's probably fair to say that the ratio of time our Connector developers spend in the debugger versus the Emacs buffer is higher than with most software.
There are a lot of people who've been able to ditch their Windows machines and switch over to Linux because they can now use their Exchange server for calendaring and collaboration from their Linux desktop.
