I agree with mobiledivide. I also belive Noka will full support the N900 and will provide improvments for the device (1st and 3rd party software).

Let's not kid ourselfs, Nokia is no small company. They are in the money making business. I doubt very much, that the previous tablets generated large profits. (N810 Wimax Edition? What a waste of development money). Yet they made this 4th version of that silly Linux powered tablet. Why? Because they know they cannot rely on Symbian alone. Not againts iPhone, WebOS, Android or even the mythical WinMo7.
By the way, the phone part in Symbian was just an afterthought. Epoc, Symbian's ancestor, was an OS for PDAs, not phones. And like WinMo < 7 it is really old and rusty.
But back to my point, I think this Maemo-thing is just a big science experiment. Can we (=they =Nokia) produces something better if we start from scratch? They could also have called it Symbian X or Symbian NT.
But what if it fails? What if the Nx00 does not sell? Oh well, than they will try something else. (Maybe licence Android? Ok just kidding. There is also a better Symbian in the making.)

Ok I lost myself a bit in this...
What I wanted to say. I don't think that Nokia needs to sell the N900 to Otto or Joe or Mary. Not this time, not yet. Nokia keeps saying, that the N97 is the flagship and S60 the software they focus on. But it never hurts to have an extra jocker up your sleeves.

Last words:
if ((N900 sold to Joe) or (N900 sold to geek)) {
Nokia.happy++;
}

--Andy

Extra bonus question: Is the writer of this long nonsensical entry a geek or a Joe?