Nah, the real reason for Maemo6 to be brought out in some form on the N900 is to ease the transition from Gtk to Qt and to demonstrate Nokia's "commitment to openness".

Just think... it has taken many years of hard work (and 4 devices) to get Fremantle "nearly ready".

The next step is from comparitive niche to mass market; "bridging the gap" and all that jazz.

So, picture the conversation:

"I know. Just before we launch the mass market version lets completely replace the entire UI and gui SDK, all the apps, the security model, the desktop and even the main programming language. What could possibly go wrong?"

<long and incredulous pause>

"Err"

"Hmm, do you think we should test it on the N900 first?"