I assumed that Maemo 5 will work on the N800/N810, just some of the features will be disabled. I hope that is the case, or there will be a lot of people annoyed I would imagine.

Also I assume this will just be the sdk, as you pointed out for the developers to test the builds etc.

So the time is coming for another "frankenbuild" on my N810 (same as diablo)

Also remember apple released the original iphone, which was completely pointless (in Europe)
Also their draconian T&C's to actually be a developer.
I'm sure if Nokia didn't allow anyone to develop freely, they probably would only release the OS after the hardware.
( [rotten] apples and oranges )

P.S. you think the next gen nokia will allow you to browse the internet "really fast" TM ;-)