We are inviting talks for the Desktops DevRoom at FOSDEM 2014, which will take place in Brussels (Belgium) 1-2 February 2014. The Call for Talks is here:
The change of the default desktop in Debian from Gnome to XFCE could be an interesting talk, BTW.
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Pau Garcia i Quiles
http://www.elpauer.org
(Due to my workload, I may need 10 days to answer)