Google has said they will not continue development of Google Wave.
From our perspective it was just too difficult and very slow to use. Though its ideas were good and it did allow some forms of shared media, map and other shared whiteboard style uses in a convenient fashion. Its user and access policy also was really awful and did not encourage uptake.
Other forms of shared media that can be used within virtual worlds like Second Life and OpenSim will be explored by us.
Vivox voice services are used in Second Life already, and give high quality spatialised sound for such environments. See http://www.vivox.com. A "Vivox Voice Gadget" is available to add voice facilities into a Google Wave. See:
To install, please edit your wave, and add a gadget. Give this URL: