Nokia is doing pretty well given the fact that their smartphone lineup is mediocre at best. N97, X6, 5800 are all equipped with slow processors and the symbian UI is still laborious to use.
By the end of the year nokia will compete at the high-end again. N900 shows they can do it. With a revamped symbian ui they will be able to dominate the mid and low-end smartphone market.
So far I like their business strategy.

Cheers