"Krusader - Powerful file manager
With a funny codename, Krusader 2.0 'Mars Pathfinder' was released
on April 11 and it is the first Krusader version for KDE4. Krusader
was always the first alternative to Konqueror back in the KDE3
days, and its twin-panel interface and powerful features can please
any user looking for an advanced file manager for KDE4."