The sales numbers for the N900 are more than likely from Nokia's point of view seen in reference to the N800 and N810 sales. When compared with the intended market of the device its sales probably are much more proportional.

Last year the iPhone only held 14% of the market share, vs Nokia's 47% of smart phone sales. According to Gartner. And many sources indicating Nokia will remain firmly in place as the lead smart phone vendor, with rim actually out pacing apple with a present first quarter of 19.1% over apples 16% market share.

So the way I look at it Nokia has done a good job, they provide enough smartphones [the intended competitor to the iPhones] to hold a huge lead over all there competitors, while still providing the opertunity to users like most of us to use a truely unique device like the N900 [and the N family in general]. Which companies like apple, rim and even google haven't been bold enough to do.

Keep in mind the apps article posted on this site earlier this month too, quality over quantity matters for long term longevity. Everyday I get to compare to just about any of the devices on the market in my job capacity and it never fails thus far the N900 trumps android's, apple's and rim's, in versatility, scalability and performance. Just my 2Cents