Morten Volden, author of the KDevelop Perforce Plugin notes in our forum:

"It allows me to use the version control system at work - without leaving my favorite IDE :-) .

My favorite feature in Kdevelop must be the excellent c++ support, and the easy navigation between files. In fact I don't even need to navigate to an included file to get an overview of what it contains - I just hover above the include statement."