Time has passed and finally kde, kde4 if you like, cycle after cycle matured. Now we are at version 4.5 and few can complain that is not one of the most advanced desktop environment and by far the best in the linux world. I will not start to write a praise to kde, I am pretty sure that was some witty Irish man who already said that from applauses you gain nothing.
Web 2.0 is with us for a while and linux DE kind of failed on it... still its engines are browser based.
At the moment almost every internet user (abuser I may say) has at least a handful of accounts on different social and blogging platforms, different instant messaging systems and few email accounts.
The grand-unification of these services should be, in my opinion, the next, big ...