OK, I give you a brake. But why should this be optimistic? The US has about 300 million inhabitants. 95% have a phone. If WP obtain a market share of 20%, which is a very optimistic estimate of Q4 2012, then this is only about 57 million units (in total). Let's be optimistic again, and say Nokia will sell 40% of those units. Then we have 23 million units sold. 23 million units sold by Q4 2012 is very optimistic. In Europe it sell a bit less, since it will only go to a selected few countries from the start, lets say 10 million units.

So 33 million units in total world wide by Q4 2012 is a somewhat believable but (overly) optimistic estimate for Nokia-WP.

The N9 will be sold throughout Europe, it will be sold in Brasil and Argentina, Russia, Malaysia, Hong Kong etc etc - and - China. That is at least a population of 2 billion human beings. For the N9 to beat this overly optimistic estimate, it only needs a market share of 1.7 percent. In most of those countries there are more than one phone per citicen.

Way too simplified this, but what is more optimistic? Harmattan is far from dead.