OK. ��It opens windows. ��But a snippet in a workspace can do that. ��It does not constitute a replacement for the current window system though does it? ��But Vassili's work can be. ��We had it in production at customer sites. ��We could use it for development. ��It was complete, in the sense that one could open arbitrary system windows as native windows, switch them back to "virtual" windows, snapshot etc and everything would keep working. ��That's "working". ��With great respect to Tim and John, their work in��Ffenestri��is not the same thing, is it? ��By the same criteria I don't think what Qwaq did constituted a real system; it allowed the login WIndow to be displayed natively, but it didn't support development tools and it certainly didn't support snapshot or dynamic switching. ��Being critical is not being insulting. ��It's merely being objective. ��At least I hope I'm being objective and not insulting anyone. ��It is not my intent.