I can follow that, because the hardware of the N9 should have been at least that of the 920 and N900 combined.

But as Lumia specialist, how would you prevent MS spying on your everything if you were to accept N920 for a phone that just works?

I have read that IM XMPP clients (already builtin N900 feature) etc...cannot benefit from real time networking and that programs requiring socket connection are heavily routed over MS Sockets and difficult to program, is that true?
Any idea if a good video XMPP client has been programmed already?