Comment 10 for bug 741129

Florian Boucault (fboucault) wrote :

Only in Oneiric, BAMF returns the correct full path to the desktop file for KDE4 applications (at least for Konversation).

Unity (2D and 3D) however only store the filename of the desktop file in the favorites list (in dconf).
Unity 3D has a mechanism to find that file by looking up quite a few directories on the filesystem. Unity 2D does not have such a mechanism.
As a result KDE4 apps can be favorited in Unity 3D in Oneiric but not in Unity 2D.