Wave was in Sydney, the only Google engineering office in Australia. I walked through their space before they had even announced the project internally. All that almost everyone in the company knew was that Lars and co. were busy on something big. The rest of the office was aware of its nature, but sworn to secrecy until the announcement. I remember going by a whiteboard, looking at this architecture diagram (wavelets?) and still having little clue on what it was all about, other than it having something to do with threads. :-)

I was asking because I have a vague recollection that Kix borrowed OT ideas or even code from Wave. But then I was even more removed from both teams than you. Or maybe it was just an aspirational thing from management to find a silver lining in the Wave shutdown.