For a good analysis, see:

http://news.cnet.com/8301-30686_3-10...g=2547-1_3-0-5

They aren't blaming Apple and RIM for the writeoff, they are giving them credit for the drop in smartphone shipments.

Nokia's phone shipments were greater than expected but their share of the smartphone market and the number of smartphones shipped declined. (Perhaps more troubling for the long term the average price of the dumbphones shipped also dropped.)

While Nokia explained the drop in smartphone share and shipments as a result of component shortages (they mentioned camera components specifically), analysts feel that it is better explained by the millions of non-Nokia smartphones sold in the US market where none of the N series phones have much penetration at all due to lack of carrier tie-ins.

Whether the N900 will change this remains to be seen. Frankly, given the success of some of the two digit N series phones elsewhere, I think that Nokia should concentrate on a carrier supported N97.