Regarding phonon being dropped, after some googling it seems i was mistaken, what i had read was that Qt framework is dropping phonon, not KDE. But still, i believe it would be sane to drop phonon in KDE too and replace it with Pulseaudio, it is the best choice. No need for 2 sound servers when one could do the trick. Plus, in case someone says Phonon can switch sound cards without the app restarting, everytime i try it Amarok and others crash, so yes, it needs restarting...
