Ok..I seriously doubt if Nokia wld do that....but what if Nokia provides an upgrade but prices it higher than the depreciated value of the N900 on that day.
a)Would we buy it?
b)Would nokia release updates/fixes for that later?
c)Would we be ready to pay for that as well?

In my view if 'yes' is the answer for all than nokia should be happy to release it.

Might be wrong, but in my opinion it is in Nokia's best interest that N900 shd carry meego, as it would help them in attaining 'critical mass' faster and bring in the developers early than wait for a full fledged device