Well thought out, and pretty-much agreed.
I think Intel still has some liability in it all, but that's a whole other debate.
Re this:
Do we have any info. to suggest that Qt will/can still play a big role?
I haven't had a chance to read any of the big threads etc yet.
I really do hope so, at least for the first year or so...

There were also rumours recently that Samsung's planning to open Bada.
Is it feasible perhaps that they may also merge Bada's upper/middle-ware into Tizen?

Bada's kernel I believe is closed/proprietary, & not owned by Samsung.
But apparently Bada was designed from the outset to be easily decoupled from the kernel.
It just seems logical at this pont that they consolidate the no. of OS's they're working on.