They will eventually probably do that - as it simplifies their maintenance issues. Unlikely for the 2007 release, but it would be poor management if they don't build 2007.1 to cover all hardware...

Don't hold your breath - porting the system specific kernel and driver components is likely, and porting the plain system apps is so trivial that it will probably be done by the community if Nokia is not fast enough.

But integrating feature addons of the third-party binary apps is much less likely to happen. That features were missing at all was mostly due to hardware constraints in the 770 (low memory, no FPU, no GL, codec limitations), and that the N800 has new features (in its software) is mostly due to the fact that the improved hardware does not need quite as much stripping from the more or less x86/desktop-centered codebases of the third party vendors.

I'd be very surprised if the 770 ever saw flash movie support from Adobe, or a more complex build of Opera that does not stall and crash even faster than the current one due to "out of memory" situations...

Sevo