I've always been a big fan of Konqueror so when I heard that Dolphin was going to be the new default file manager for KDE4 I was disappointed. But after researching the decision further and actually giving Dolphin a try, I'm a convert.

I'm a Kubuntu user and I ran into a situation recently where the app I wanted to install only came in an RPM. I've run into this situation before and always have to remember alien's syntax so I can install the RPM from Konsole. Kubuntu has a menu where I can right-click a DEB file in Konqueror to install it, so why not RPM's? Once I got bored of gripping I decided to create my own.