When I understand Wave well, it is disruptive technology. When people talk about Wikipedia, one aspect of it is how it proved disruptive innovation as it changed the face of the market for encyclopaedic information.
What I got out of the feedback of our presentation at Wikimania, is that our MediaWiki Wave interface has the potential to be disruptive as well. Real time collaborative editing is what we will bring to MediaWiki and that will be disruptive. The current history pages of MediaWiki and its assessments expect serial changes by individual editors. All our tools to supress vandalism rely on this.
In the recordings of Wikivoices podcasts we experimented with collaborative editing and, it allowed us to write quality articles in a short period of times. Experiences like this gives me the conviction that Wikipedia can do with a bit of disruption of its own.
For those who claim that the end is neigh... I asked Luca de Alvaro what he thought about collaborative realtime editing; he first asked me if there was reliable historic data and then told me that it just needed a different algorithm.